agpgart_be.c
上传用户:lgb322
上传日期:2013-02-24
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文件大小:107k
- /*
- * AGPGART module version 0.99
- * Copyright (C) 1999 Jeff Hartmann
- * Copyright (C) 1999 Precision Insight, Inc.
- * Copyright (C) 1999 Xi Graphics, Inc.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included
- * in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * JEFF HARTMANN, OR ANY OTHER CONTRIBUTORS BE LIABLE FOR ANY CLAIM,
- * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
- * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE
- * OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- *
- */
- #include <linux/config.h>
- #include <linux/version.h>
- #include <linux/module.h>
- #include <linux/types.h>
- #include <linux/kernel.h>
- #include <linux/sched.h>
- #include <linux/mm.h>
- #include <linux/string.h>
- #include <linux/errno.h>
- #include <linux/slab.h>
- #include <linux/vmalloc.h>
- #include <linux/pci.h>
- #include <linux/init.h>
- #include <linux/pagemap.h>
- #include <linux/miscdevice.h>
- #include <linux/pm.h>
- #include <asm/system.h>
- #include <asm/uaccess.h>
- #include <asm/io.h>
- #include <asm/page.h>
- #include <linux/agp_backend.h>
- #include "agp.h"
- MODULE_AUTHOR("Jeff Hartmann <jhartmann@precisioninsight.com>");
- MODULE_PARM(agp_try_unsupported, "1i");
- MODULE_LICENSE("GPL and additional rights");
- EXPORT_SYMBOL(agp_free_memory);
- EXPORT_SYMBOL(agp_allocate_memory);
- EXPORT_SYMBOL(agp_copy_info);
- EXPORT_SYMBOL(agp_bind_memory);
- EXPORT_SYMBOL(agp_unbind_memory);
- EXPORT_SYMBOL(agp_enable);
- EXPORT_SYMBOL(agp_backend_acquire);
- EXPORT_SYMBOL(agp_backend_release);
- static void flush_cache(void);
- static struct agp_bridge_data agp_bridge;
- static int agp_try_unsupported __initdata = 0;
- static inline void flush_cache(void)
- {
- #if defined(__i386__) || defined(__x86_64__)
- asm volatile ("wbinvd":::"memory");
- #elif defined(__alpha__) || defined(__ia64__) || defined(__sparc__)
- /* ??? I wonder if we'll really need to flush caches, or if the
- core logic can manage to keep the system coherent. The ARM
- speaks only of using `cflush' to get things in memory in
- preparation for power failure.
- If we do need to call `cflush', we'll need a target page,
- as we can only flush one page at a time.
- Ditto for IA-64. --davidm 00/08/07 */
- mb();
- #else
- #error "Please define flush_cache."
- #endif
- }
- #ifdef CONFIG_SMP
- static atomic_t cpus_waiting;
- static void ipi_handler(void *null)
- {
- flush_cache();
- atomic_dec(&cpus_waiting);
- while (atomic_read(&cpus_waiting) > 0)
- barrier();
- }
- static void smp_flush_cache(void)
- {
- atomic_set(&cpus_waiting, smp_num_cpus - 1);
- if (smp_call_function(ipi_handler, NULL, 1, 0) != 0)
- panic(PFX "timed out waiting for the other CPUs!n");
- flush_cache();
- while (atomic_read(&cpus_waiting) > 0)
- barrier();
- }
- #define global_cache_flush smp_flush_cache
- #else /* CONFIG_SMP */
- #define global_cache_flush flush_cache
- #endif /* CONFIG_SMP */
- int agp_backend_acquire(void)
- {
- if (agp_bridge.type == NOT_SUPPORTED) {
- return -EINVAL;
- }
- atomic_inc(&agp_bridge.agp_in_use);
- if (atomic_read(&agp_bridge.agp_in_use) != 1) {
- atomic_dec(&agp_bridge.agp_in_use);
- return -EBUSY;
- }
- MOD_INC_USE_COUNT;
- return 0;
- }
- void agp_backend_release(void)
- {
- if (agp_bridge.type == NOT_SUPPORTED) {
- return;
- }
- atomic_dec(&agp_bridge.agp_in_use);
- MOD_DEC_USE_COUNT;
- }
- /*
- * Generic routines for handling agp_memory structures -
- * They use the basic page allocation routines to do the
- * brunt of the work.
- */
- static void agp_free_key(int key)
- {
- if (key < 0) {
- return;
- }
- if (key < MAXKEY) {
- clear_bit(key, agp_bridge.key_list);
- }
- }
- static int agp_get_key(void)
- {
- int bit;
- bit = find_first_zero_bit(agp_bridge.key_list, MAXKEY);
- if (bit < MAXKEY) {
- set_bit(bit, agp_bridge.key_list);
- return bit;
- }
- return -1;
- }
- static agp_memory *agp_create_memory(int scratch_pages)
- {
- agp_memory *new;
- new = kmalloc(sizeof(agp_memory), GFP_KERNEL);
- if (new == NULL) {
- return NULL;
- }
- memset(new, 0, sizeof(agp_memory));
- new->key = agp_get_key();
- if (new->key < 0) {
- kfree(new);
- return NULL;
- }
- new->memory = vmalloc(PAGE_SIZE * scratch_pages);
- if (new->memory == NULL) {
- agp_free_key(new->key);
- kfree(new);
- return NULL;
- }
- new->num_scratch_pages = scratch_pages;
- return new;
- }
- void agp_free_memory(agp_memory * curr)
- {
- int i;
- if ((agp_bridge.type == NOT_SUPPORTED) || (curr == NULL)) {
- return;
- }
- if (curr->is_bound == TRUE) {
- agp_unbind_memory(curr);
- }
- if (curr->type != 0) {
- agp_bridge.free_by_type(curr);
- return;
- }
- if (curr->page_count != 0) {
- for (i = 0; i < curr->page_count; i++) {
- curr->memory[i] &= ~(0x00000fff);
- agp_bridge.agp_destroy_page((unsigned long)
- phys_to_virt(curr->memory[i]));
- }
- }
- agp_free_key(curr->key);
- vfree(curr->memory);
- kfree(curr);
- MOD_DEC_USE_COUNT;
- }
- #define ENTRIES_PER_PAGE (PAGE_SIZE / sizeof(unsigned long))
- agp_memory *agp_allocate_memory(size_t page_count, u32 type)
- {
- int scratch_pages;
- agp_memory *new;
- int i;
- if (agp_bridge.type == NOT_SUPPORTED) {
- return NULL;
- }
- if ((atomic_read(&agp_bridge.current_memory_agp) + page_count) >
- agp_bridge.max_memory_agp) {
- return NULL;
- }
- if (type != 0) {
- new = agp_bridge.alloc_by_type(page_count, type);
- return new;
- }
- /* We always increase the module count, since free auto-decrements
- * it
- */
- MOD_INC_USE_COUNT;
- scratch_pages = (page_count + ENTRIES_PER_PAGE - 1) / ENTRIES_PER_PAGE;
- new = agp_create_memory(scratch_pages);
- if (new == NULL) {
- MOD_DEC_USE_COUNT;
- return NULL;
- }
- for (i = 0; i < page_count; i++) {
- new->memory[i] = agp_bridge.agp_alloc_page();
- if (new->memory[i] == 0) {
- /* Free this structure */
- agp_free_memory(new);
- return NULL;
- }
- new->memory[i] =
- agp_bridge.mask_memory(
- virt_to_phys((void *) new->memory[i]),
- type);
- new->page_count++;
- }
- return new;
- }
- /* End - Generic routines for handling agp_memory structures */
- static int agp_return_size(void)
- {
- int current_size;
- void *temp;
- temp = agp_bridge.current_size;
- switch (agp_bridge.size_type) {
- case U8_APER_SIZE:
- current_size = A_SIZE_8(temp)->size;
- break;
- case U16_APER_SIZE:
- current_size = A_SIZE_16(temp)->size;
- break;
- case U32_APER_SIZE:
- current_size = A_SIZE_32(temp)->size;
- break;
- case LVL2_APER_SIZE:
- current_size = A_SIZE_LVL2(temp)->size;
- break;
- case FIXED_APER_SIZE:
- current_size = A_SIZE_FIX(temp)->size;
- break;
- default:
- current_size = 0;
- break;
- }
- return current_size;
- }
- /* Routine to copy over information structure */
- void agp_copy_info(agp_kern_info * info)
- {
- unsigned long page_mask = 0;
- int i;
- memset(info, 0, sizeof(agp_kern_info));
- if (agp_bridge.type == NOT_SUPPORTED) {
- info->chipset = agp_bridge.type;
- return;
- }
- info->version.major = agp_bridge.version->major;
- info->version.minor = agp_bridge.version->minor;
- info->device = agp_bridge.dev;
- info->chipset = agp_bridge.type;
- info->mode = agp_bridge.mode;
- info->aper_base = agp_bridge.gart_bus_addr;
- info->aper_size = agp_return_size();
- info->max_memory = agp_bridge.max_memory_agp;
- info->current_memory = atomic_read(&agp_bridge.current_memory_agp);
- info->cant_use_aperture = agp_bridge.cant_use_aperture;
- for(i = 0; i < agp_bridge.num_of_masks; i++)
- page_mask |= agp_bridge.mask_memory(page_mask, i);
- info->page_mask = ~page_mask;
- }
- /* End - Routine to copy over information structure */
- /*
- * Routines for handling swapping of agp_memory into the GATT -
- * These routines take agp_memory and insert them into the GATT.
- * They call device specific routines to actually write to the GATT.
- */
- int agp_bind_memory(agp_memory * curr, off_t pg_start)
- {
- int ret_val;
- if ((agp_bridge.type == NOT_SUPPORTED) ||
- (curr == NULL) || (curr->is_bound == TRUE)) {
- return -EINVAL;
- }
- if (curr->is_flushed == FALSE) {
- CACHE_FLUSH();
- curr->is_flushed = TRUE;
- }
- ret_val = agp_bridge.insert_memory(curr, pg_start, curr->type);
- if (ret_val != 0) {
- return ret_val;
- }
- curr->is_bound = TRUE;
- curr->pg_start = pg_start;
- return 0;
- }
- int agp_unbind_memory(agp_memory * curr)
- {
- int ret_val;
- if ((agp_bridge.type == NOT_SUPPORTED) || (curr == NULL)) {
- return -EINVAL;
- }
- if (curr->is_bound != TRUE) {
- return -EINVAL;
- }
- ret_val = agp_bridge.remove_memory(curr, curr->pg_start, curr->type);
- if (ret_val != 0) {
- return ret_val;
- }
- curr->is_bound = FALSE;
- curr->pg_start = 0;
- return 0;
- }
- /* End - Routines for handling swapping of agp_memory into the GATT */
- /*
- * Driver routines - start
- * Currently this module supports the following chipsets:
- * i810, i815, 440lx, 440bx, 440gx, i830, i840, i845, i850, i860, via vp3,
- * via mvp3, via kx133, via kt133, amd irongate, amd 761, amd 762, ALi M1541,
- * and generic support for the SiS chipsets.
- */
- /* Generic Agp routines - Start */
- static void agp_generic_agp_enable(u32 mode)
- {
- struct pci_dev *device = NULL;
- u32 command, scratch, cap_id;
- u8 cap_ptr;
- pci_read_config_dword(agp_bridge.dev,
- agp_bridge.capndx + 4,
- &command);
- /*
- * PASS1: go throu all devices that claim to be
- * AGP devices and collect their data.
- */
- pci_for_each_dev(device)
- {
- /*
- * Enable AGP devices. Most will be VGA display but
- * some may be coprocessors on non VGA devices too
- */
-
- if((((device->class >> 16) & 0xFF) != PCI_BASE_CLASS_DISPLAY) &&
- (device->class != (PCI_CLASS_PROCESSOR_CO << 8)))
- continue;
- pci_read_config_dword(device, 0x04, &scratch);
- if (!(scratch & 0x00100000))
- continue;
- pci_read_config_byte(device, 0x34, &cap_ptr);
- if (cap_ptr != 0x00) {
- do {
- pci_read_config_dword(device,
- cap_ptr, &cap_id);
- if ((cap_id & 0xff) != 0x02)
- cap_ptr = (cap_id >> 8) & 0xff;
- }
- while (((cap_id & 0xff) != 0x02) && (cap_ptr != 0x00));
- }
- if (cap_ptr != 0x00) {
- /*
- * Ok, here we have a AGP device. Disable impossible
- * settings, and adjust the readqueue to the minimum.
- */
- pci_read_config_dword(device, cap_ptr + 4, &scratch);
- /* adjust RQ depth */
- command =
- ((command & ~0xff000000) |
- min_t(u32, (mode & 0xff000000),
- min_t(u32, (command & 0xff000000),
- (scratch & 0xff000000))));
- /* disable SBA if it's not supported */
- if (!((command & 0x00000200) &&
- (scratch & 0x00000200) &&
- (mode & 0x00000200)))
- command &= ~0x00000200;
- /* disable FW if it's not supported */
- if (!((command & 0x00000010) &&
- (scratch & 0x00000010) &&
- (mode & 0x00000010)))
- command &= ~0x00000010;
- if (!((command & 4) &&
- (scratch & 4) &&
- (mode & 4)))
- command &= ~0x00000004;
- if (!((command & 2) &&
- (scratch & 2) &&
- (mode & 2)))
- command &= ~0x00000002;
- if (!((command & 1) &&
- (scratch & 1) &&
- (mode & 1)))
- command &= ~0x00000001;
- }
- }
- /*
- * PASS2: Figure out the 4X/2X/1X setting and enable the
- * target (our motherboard chipset).
- */
- if (command & 4) {
- command &= ~3; /* 4X */
- }
- if (command & 2) {
- command &= ~5; /* 2X */
- }
- if (command & 1) {
- command &= ~6; /* 1X */
- }
- command |= 0x00000100;
- pci_write_config_dword(agp_bridge.dev,
- agp_bridge.capndx + 8,
- command);
- /*
- * PASS3: Go throu all AGP devices and update the
- * command registers.
- */
- while ((device = pci_find_class(PCI_CLASS_DISPLAY_VGA << 8,
- device)) != NULL) {
- pci_read_config_dword(device, 0x04, &scratch);
- if (!(scratch & 0x00100000))
- continue;
- pci_read_config_byte(device, 0x34, &cap_ptr);
- if (cap_ptr != 0x00) {
- do {
- pci_read_config_dword(device,
- cap_ptr, &cap_id);
- if ((cap_id & 0xff) != 0x02)
- cap_ptr = (cap_id >> 8) & 0xff;
- }
- while (((cap_id & 0xff) != 0x02) && (cap_ptr != 0x00));
- }
- if (cap_ptr != 0x00)
- pci_write_config_dword(device, cap_ptr + 8, command);
- }
- }
- static int agp_generic_create_gatt_table(void)
- {
- char *table;
- char *table_end;
- int size;
- int page_order;
- int num_entries;
- int i;
- void *temp;
- struct page *page;
- /* The generic routines can't handle 2 level gatt's */
- if (agp_bridge.size_type == LVL2_APER_SIZE) {
- return -EINVAL;
- }
- table = NULL;
- i = agp_bridge.aperture_size_idx;
- temp = agp_bridge.current_size;
- size = page_order = num_entries = 0;
- if (agp_bridge.size_type != FIXED_APER_SIZE) {
- do {
- switch (agp_bridge.size_type) {
- case U8_APER_SIZE:
- size = A_SIZE_8(temp)->size;
- page_order =
- A_SIZE_8(temp)->page_order;
- num_entries =
- A_SIZE_8(temp)->num_entries;
- break;
- case U16_APER_SIZE:
- size = A_SIZE_16(temp)->size;
- page_order = A_SIZE_16(temp)->page_order;
- num_entries = A_SIZE_16(temp)->num_entries;
- break;
- case U32_APER_SIZE:
- size = A_SIZE_32(temp)->size;
- page_order = A_SIZE_32(temp)->page_order;
- num_entries = A_SIZE_32(temp)->num_entries;
- break;
- /* This case will never really happen. */
- case FIXED_APER_SIZE:
- case LVL2_APER_SIZE:
- default:
- size = page_order = num_entries = 0;
- break;
- }
- table = (char *) __get_free_pages(GFP_KERNEL,
- page_order);
- if (table == NULL) {
- i++;
- switch (agp_bridge.size_type) {
- case U8_APER_SIZE:
- agp_bridge.current_size = A_IDX8();
- break;
- case U16_APER_SIZE:
- agp_bridge.current_size = A_IDX16();
- break;
- case U32_APER_SIZE:
- agp_bridge.current_size = A_IDX32();
- break;
- /* This case will never really
- * happen.
- */
- case FIXED_APER_SIZE:
- case LVL2_APER_SIZE:
- default:
- agp_bridge.current_size =
- agp_bridge.current_size;
- break;
- }
- } else {
- agp_bridge.aperture_size_idx = i;
- }
- } while ((table == NULL) &&
- (i < agp_bridge.num_aperture_sizes));
- } else {
- size = ((aper_size_info_fixed *) temp)->size;
- page_order = ((aper_size_info_fixed *) temp)->page_order;
- num_entries = ((aper_size_info_fixed *) temp)->num_entries;
- table = (char *) __get_free_pages(GFP_KERNEL, page_order);
- }
- if (table == NULL) {
- return -ENOMEM;
- }
- table_end = table + ((PAGE_SIZE * (1 << page_order)) - 1);
- for (page = virt_to_page(table); page <= virt_to_page(table_end); page++)
- set_bit(PG_reserved, &page->flags);
- agp_bridge.gatt_table_real = (unsigned long *) table;
- CACHE_FLUSH();
- agp_bridge.gatt_table = ioremap_nocache(virt_to_phys(table),
- (PAGE_SIZE * (1 << page_order)));
- CACHE_FLUSH();
- if (agp_bridge.gatt_table == NULL) {
- for (page = virt_to_page(table); page <= virt_to_page(table_end); page++)
- clear_bit(PG_reserved, &page->flags);
- free_pages((unsigned long) table, page_order);
- return -ENOMEM;
- }
- agp_bridge.gatt_bus_addr = virt_to_phys(agp_bridge.gatt_table_real);
- for (i = 0; i < num_entries; i++) {
- agp_bridge.gatt_table[i] =
- (unsigned long) agp_bridge.scratch_page;
- }
- return 0;
- }
- static int agp_generic_suspend(void)
- {
- return 0;
- }
- static void agp_generic_resume(void)
- {
- return;
- }
- static int agp_generic_free_gatt_table(void)
- {
- int page_order;
- char *table, *table_end;
- void *temp;
- struct page *page;
- temp = agp_bridge.current_size;
- switch (agp_bridge.size_type) {
- case U8_APER_SIZE:
- page_order = A_SIZE_8(temp)->page_order;
- break;
- case U16_APER_SIZE:
- page_order = A_SIZE_16(temp)->page_order;
- break;
- case U32_APER_SIZE:
- page_order = A_SIZE_32(temp)->page_order;
- break;
- case FIXED_APER_SIZE:
- page_order = A_SIZE_FIX(temp)->page_order;
- break;
- case LVL2_APER_SIZE:
- /* The generic routines can't deal with 2 level gatt's */
- return -EINVAL;
- break;
- default:
- page_order = 0;
- break;
- }
- /* Do not worry about freeing memory, because if this is
- * called, then all agp memory is deallocated and removed
- * from the table.
- */
- iounmap(agp_bridge.gatt_table);
- table = (char *) agp_bridge.gatt_table_real;
- table_end = table + ((PAGE_SIZE * (1 << page_order)) - 1);
- for (page = virt_to_page(table); page <= virt_to_page(table_end); page++)
- clear_bit(PG_reserved, &page->flags);
- free_pages((unsigned long) agp_bridge.gatt_table_real, page_order);
- return 0;
- }
- static int agp_generic_insert_memory(agp_memory * mem,
- off_t pg_start, int type)
- {
- int i, j, num_entries;
- void *temp;
- temp = agp_bridge.current_size;
- switch (agp_bridge.size_type) {
- case U8_APER_SIZE:
- num_entries = A_SIZE_8(temp)->num_entries;
- break;
- case U16_APER_SIZE:
- num_entries = A_SIZE_16(temp)->num_entries;
- break;
- case U32_APER_SIZE:
- num_entries = A_SIZE_32(temp)->num_entries;
- break;
- case FIXED_APER_SIZE:
- num_entries = A_SIZE_FIX(temp)->num_entries;
- break;
- case LVL2_APER_SIZE:
- /* The generic routines can't deal with 2 level gatt's */
- return -EINVAL;
- break;
- default:
- num_entries = 0;
- break;
- }
- if (type != 0 || mem->type != 0) {
- /* The generic routines know nothing of memory types */
- return -EINVAL;
- }
- if ((pg_start + mem->page_count) > num_entries) {
- return -EINVAL;
- }
- j = pg_start;
- while (j < (pg_start + mem->page_count)) {
- if (!PGE_EMPTY(agp_bridge.gatt_table[j])) {
- return -EBUSY;
- }
- j++;
- }
- if (mem->is_flushed == FALSE) {
- CACHE_FLUSH();
- mem->is_flushed = TRUE;
- }
- for (i = 0, j = pg_start; i < mem->page_count; i++, j++) {
- agp_bridge.gatt_table[j] = mem->memory[i];
- }
- agp_bridge.tlb_flush(mem);
- return 0;
- }
- static int agp_generic_remove_memory(agp_memory * mem, off_t pg_start,
- int type)
- {
- int i;
- if (type != 0 || mem->type != 0) {
- /* The generic routines know nothing of memory types */
- return -EINVAL;
- }
- for (i = pg_start; i < (mem->page_count + pg_start); i++) {
- agp_bridge.gatt_table[i] =
- (unsigned long) agp_bridge.scratch_page;
- }
- agp_bridge.tlb_flush(mem);
- return 0;
- }
- static agp_memory *agp_generic_alloc_by_type(size_t page_count, int type)
- {
- return NULL;
- }
- static void agp_generic_free_by_type(agp_memory * curr)
- {
- if (curr->memory != NULL) {
- vfree(curr->memory);
- }
- agp_free_key(curr->key);
- kfree(curr);
- }
- /*
- * Basic Page Allocation Routines -
- * These routines handle page allocation
- * and by default they reserve the allocated
- * memory. They also handle incrementing the
- * current_memory_agp value, Which is checked
- * against a maximum value.
- */
- static unsigned long agp_generic_alloc_page(void)
- {
- struct page * page;
-
- page = alloc_page(GFP_KERNEL);
- if (page == NULL) {
- return 0;
- }
- atomic_inc(&page->count);
- set_bit(PG_locked, &page->flags);
- atomic_inc(&agp_bridge.current_memory_agp);
- return (unsigned long)page_address(page);
- }
- static void agp_generic_destroy_page(unsigned long addr)
- {
- void *pt = (void *) addr;
- struct page *page;
- if (pt == NULL) {
- return;
- }
-
- page = virt_to_page(pt);
- atomic_dec(&page->count);
- clear_bit(PG_locked, &page->flags);
- wake_up(&page->wait);
- free_page((unsigned long) pt);
- atomic_dec(&agp_bridge.current_memory_agp);
- }
- /* End Basic Page Allocation Routines */
- void agp_enable(u32 mode)
- {
- if (agp_bridge.type == NOT_SUPPORTED) return;
- agp_bridge.agp_enable(mode);
- }
- /* End - Generic Agp routines */
- #ifdef CONFIG_AGP_I810
- static aper_size_info_fixed intel_i810_sizes[] =
- {
- {64, 16384, 4},
- /* The 32M mode still requires a 64k gatt */
- {32, 8192, 4}
- };
- #define AGP_DCACHE_MEMORY 1
- #define AGP_PHYS_MEMORY 2
- static gatt_mask intel_i810_masks[] =
- {
- {I810_PTE_VALID, 0},
- {(I810_PTE_VALID | I810_PTE_LOCAL), AGP_DCACHE_MEMORY},
- {I810_PTE_VALID, 0}
- };
- static struct _intel_i810_private {
- struct pci_dev *i810_dev; /* device one */
- volatile u8 *registers;
- int num_dcache_entries;
- } intel_i810_private;
- static int intel_i810_fetch_size(void)
- {
- u32 smram_miscc;
- aper_size_info_fixed *values;
- pci_read_config_dword(agp_bridge.dev, I810_SMRAM_MISCC, &smram_miscc);
- values = A_SIZE_FIX(agp_bridge.aperture_sizes);
- if ((smram_miscc & I810_GMS) == I810_GMS_DISABLE) {
- printk(KERN_WARNING PFX "i810 is disabledn");
- return 0;
- }
- if ((smram_miscc & I810_GFX_MEM_WIN_SIZE) == I810_GFX_MEM_WIN_32M) {
- agp_bridge.previous_size =
- agp_bridge.current_size = (void *) (values + 1);
- agp_bridge.aperture_size_idx = 1;
- return values[1].size;
- } else {
- agp_bridge.previous_size =
- agp_bridge.current_size = (void *) (values);
- agp_bridge.aperture_size_idx = 0;
- return values[0].size;
- }
- return 0;
- }
- static int intel_i810_configure(void)
- {
- aper_size_info_fixed *current_size;
- u32 temp;
- int i;
- current_size = A_SIZE_FIX(agp_bridge.current_size);
- pci_read_config_dword(intel_i810_private.i810_dev, I810_MMADDR, &temp);
- temp &= 0xfff80000;
- intel_i810_private.registers =
- (volatile u8 *) ioremap(temp, 128 * 4096);
- if ((INREG32(intel_i810_private.registers, I810_DRAM_CTL)
- & I810_DRAM_ROW_0) == I810_DRAM_ROW_0_SDRAM) {
- /* This will need to be dynamically assigned */
- printk(KERN_INFO PFX "detected 4MB dedicated video ram.n");
- intel_i810_private.num_dcache_entries = 1024;
- }
- pci_read_config_dword(intel_i810_private.i810_dev, I810_GMADDR, &temp);
- agp_bridge.gart_bus_addr = (temp & PCI_BASE_ADDRESS_MEM_MASK);
- OUTREG32(intel_i810_private.registers, I810_PGETBL_CTL,
- agp_bridge.gatt_bus_addr | I810_PGETBL_ENABLED);
- CACHE_FLUSH();
- if (agp_bridge.needs_scratch_page == TRUE) {
- for (i = 0; i < current_size->num_entries; i++) {
- OUTREG32(intel_i810_private.registers,
- I810_PTE_BASE + (i * 4),
- agp_bridge.scratch_page);
- }
- }
- return 0;
- }
- static void intel_i810_cleanup(void)
- {
- OUTREG32(intel_i810_private.registers, I810_PGETBL_CTL, 0);
- iounmap((void *) intel_i810_private.registers);
- }
- static void intel_i810_tlbflush(agp_memory * mem)
- {
- return;
- }
- static void intel_i810_agp_enable(u32 mode)
- {
- return;
- }
- static int intel_i810_insert_entries(agp_memory * mem, off_t pg_start,
- int type)
- {
- int i, j, num_entries;
- void *temp;
- temp = agp_bridge.current_size;
- num_entries = A_SIZE_FIX(temp)->num_entries;
- if ((pg_start + mem->page_count) > num_entries) {
- return -EINVAL;
- }
- for (j = pg_start; j < (pg_start + mem->page_count); j++) {
- if (!PGE_EMPTY(agp_bridge.gatt_table[j])) {
- return -EBUSY;
- }
- }
- if (type != 0 || mem->type != 0) {
- if ((type == AGP_DCACHE_MEMORY) &&
- (mem->type == AGP_DCACHE_MEMORY)) {
- /* special insert */
- CACHE_FLUSH();
- for (i = pg_start;
- i < (pg_start + mem->page_count); i++) {
- OUTREG32(intel_i810_private.registers,
- I810_PTE_BASE + (i * 4),
- (i * 4096) | I810_PTE_LOCAL |
- I810_PTE_VALID);
- }
- CACHE_FLUSH();
- agp_bridge.tlb_flush(mem);
- return 0;
- }
- if((type == AGP_PHYS_MEMORY) &&
- (mem->type == AGP_PHYS_MEMORY)) {
- goto insert;
- }
- return -EINVAL;
- }
- insert:
- CACHE_FLUSH();
- for (i = 0, j = pg_start; i < mem->page_count; i++, j++) {
- OUTREG32(intel_i810_private.registers,
- I810_PTE_BASE + (j * 4), mem->memory[i]);
- }
- CACHE_FLUSH();
- agp_bridge.tlb_flush(mem);
- return 0;
- }
- static int intel_i810_remove_entries(agp_memory * mem, off_t pg_start,
- int type)
- {
- int i;
- for (i = pg_start; i < (mem->page_count + pg_start); i++) {
- OUTREG32(intel_i810_private.registers,
- I810_PTE_BASE + (i * 4),
- agp_bridge.scratch_page);
- }
- CACHE_FLUSH();
- agp_bridge.tlb_flush(mem);
- return 0;
- }
- static agp_memory *intel_i810_alloc_by_type(size_t pg_count, int type)
- {
- agp_memory *new;
- if (type == AGP_DCACHE_MEMORY) {
- if (pg_count != intel_i810_private.num_dcache_entries) {
- return NULL;
- }
- new = agp_create_memory(1);
- if (new == NULL) {
- return NULL;
- }
- new->type = AGP_DCACHE_MEMORY;
- new->page_count = pg_count;
- new->num_scratch_pages = 0;
- vfree(new->memory);
- MOD_INC_USE_COUNT;
- return new;
- }
- if(type == AGP_PHYS_MEMORY) {
- /* The I810 requires a physical address to program
- * it's mouse pointer into hardware. However the
- * Xserver still writes to it through the agp
- * aperture
- */
- if (pg_count != 1) {
- return NULL;
- }
- new = agp_create_memory(1);
- if (new == NULL) {
- return NULL;
- }
- MOD_INC_USE_COUNT;
- new->memory[0] = agp_bridge.agp_alloc_page();
- if (new->memory[0] == 0) {
- /* Free this structure */
- agp_free_memory(new);
- return NULL;
- }
- new->memory[0] =
- agp_bridge.mask_memory(
- virt_to_phys((void *) new->memory[0]),
- type);
- new->page_count = 1;
- new->num_scratch_pages = 1;
- new->type = AGP_PHYS_MEMORY;
- new->physical = virt_to_phys((void *) new->memory[0]);
- return new;
- }
-
- return NULL;
- }
- static void intel_i810_free_by_type(agp_memory * curr)
- {
- agp_free_key(curr->key);
- if(curr->type == AGP_PHYS_MEMORY) {
- agp_bridge.agp_destroy_page((unsigned long)
- phys_to_virt(curr->memory[0]));
- vfree(curr->memory);
- }
- kfree(curr);
- MOD_DEC_USE_COUNT;
- }
- static unsigned long intel_i810_mask_memory(unsigned long addr, int type)
- {
- /* Type checking must be done elsewhere */
- return addr | agp_bridge.masks[type].mask;
- }
- static int __init intel_i810_setup(struct pci_dev *i810_dev)
- {
- intel_i810_private.i810_dev = i810_dev;
- agp_bridge.masks = intel_i810_masks;
- agp_bridge.num_of_masks = 2;
- agp_bridge.aperture_sizes = (void *) intel_i810_sizes;
- agp_bridge.size_type = FIXED_APER_SIZE;
- agp_bridge.num_aperture_sizes = 2;
- agp_bridge.dev_private_data = (void *) &intel_i810_private;
- agp_bridge.needs_scratch_page = TRUE;
- agp_bridge.configure = intel_i810_configure;
- agp_bridge.fetch_size = intel_i810_fetch_size;
- agp_bridge.cleanup = intel_i810_cleanup;
- agp_bridge.tlb_flush = intel_i810_tlbflush;
- agp_bridge.mask_memory = intel_i810_mask_memory;
- agp_bridge.agp_enable = intel_i810_agp_enable;
- agp_bridge.cache_flush = global_cache_flush;
- agp_bridge.create_gatt_table = agp_generic_create_gatt_table;
- agp_bridge.free_gatt_table = agp_generic_free_gatt_table;
- agp_bridge.insert_memory = intel_i810_insert_entries;
- agp_bridge.remove_memory = intel_i810_remove_entries;
- agp_bridge.alloc_by_type = intel_i810_alloc_by_type;
- agp_bridge.free_by_type = intel_i810_free_by_type;
- agp_bridge.agp_alloc_page = agp_generic_alloc_page;
- agp_bridge.agp_destroy_page = agp_generic_destroy_page;
- agp_bridge.suspend = agp_generic_suspend;
- agp_bridge.resume = agp_generic_resume;
- agp_bridge.cant_use_aperture = 0;
- return 0;
- }
- static aper_size_info_fixed intel_i830_sizes[] =
- {
- {128, 32768, 5},
- /* The 64M mode still requires a 128k gatt */
- {64, 16384, 5}
- };
- static struct _intel_i830_private {
- struct pci_dev *i830_dev; /* device one */
- volatile u8 *registers;
- int gtt_entries;
- } intel_i830_private;
- static void intel_i830_init_gtt_entries(void) {
- u16 gmch_ctrl;
- int gtt_entries;
- u8 rdct;
- static const int ddt[4] = { 0, 16, 32, 64 };
- pci_read_config_word(agp_bridge.dev,I830_GMCH_CTRL,&gmch_ctrl);
- switch (gmch_ctrl & I830_GMCH_GMS_MASK) {
- case I830_GMCH_GMS_STOLEN_512:
- gtt_entries = KB(512);
- printk(KERN_INFO PFX "detected %dK stolen memory.n",gtt_entries / KB(1));
- break;
- case I830_GMCH_GMS_STOLEN_1024:
- gtt_entries = MB(1);
- printk(KERN_INFO PFX "detected %dK stolen memory.n",gtt_entries / KB(1));
- break;
- case I830_GMCH_GMS_STOLEN_8192:
- gtt_entries = MB(8);
- printk(KERN_INFO PFX "detected %dK stolen memory.n",gtt_entries / KB(1));
- break;
- case I830_GMCH_GMS_LOCAL:
- rdct = INREG8(intel_i830_private.registers,I830_RDRAM_CHANNEL_TYPE);
- gtt_entries = (I830_RDRAM_ND(rdct) + 1) * MB(ddt[I830_RDRAM_DDT(rdct)]);
- printk(KERN_INFO PFX "detected %dK local memory.n",gtt_entries / KB(1));
- break;
- default:
- printk(KERN_INFO PFX "no video memory detected.n");
- gtt_entries = 0;
- break;
- }
- gtt_entries /= KB(4);
- intel_i830_private.gtt_entries = gtt_entries;
- }
- /* The intel i830 automatically initializes the agp aperture during POST.
- * Use the memory already set aside for in the GTT.
- */
- static int intel_i830_create_gatt_table(void)
- {
- int page_order;
- aper_size_info_fixed *size;
- int num_entries;
- u32 temp;
- size = agp_bridge.current_size;
- page_order = size->page_order;
- num_entries = size->num_entries;
- agp_bridge.gatt_table_real = 0;
- pci_read_config_dword(intel_i830_private.i830_dev,I810_MMADDR,&temp);
- temp &= 0xfff80000;
- intel_i830_private.registers = (volatile u8 *) ioremap(temp,128 * 4096);
- if (!intel_i830_private.registers) return (-ENOMEM);
- temp = INREG32(intel_i830_private.registers,I810_PGETBL_CTL) & 0xfffff000;
- CACHE_FLUSH();
- /* we have to call this as early as possible after the MMIO base address is known */
- intel_i830_init_gtt_entries();
- agp_bridge.gatt_table = NULL;
- agp_bridge.gatt_bus_addr = temp;
- return(0);
- }
- /* Return the gatt table to a sane state. Use the top of stolen
- * memory for the GTT.
- */
- static int intel_i830_free_gatt_table(void)
- {
- return(0);
- }
- static int intel_i830_fetch_size(void)
- {
- u16 gmch_ctrl;
- aper_size_info_fixed *values;
- pci_read_config_word(agp_bridge.dev,I830_GMCH_CTRL,&gmch_ctrl);
- values = A_SIZE_FIX(agp_bridge.aperture_sizes);
- if ((gmch_ctrl & I830_GMCH_MEM_MASK) == I830_GMCH_MEM_128M) {
- agp_bridge.previous_size = agp_bridge.current_size = (void *) values;
- agp_bridge.aperture_size_idx = 0;
- return(values[0].size);
- } else {
- agp_bridge.previous_size = agp_bridge.current_size = (void *) values;
- agp_bridge.aperture_size_idx = 1;
- return(values[1].size);
- }
- return(0);
- }
- static int intel_i830_configure(void)
- {
- aper_size_info_fixed *current_size;
- u32 temp;
- u16 gmch_ctrl;
- int i;
- current_size = A_SIZE_FIX(agp_bridge.current_size);
- pci_read_config_dword(intel_i830_private.i830_dev,I810_GMADDR,&temp);
- agp_bridge.gart_bus_addr = (temp & PCI_BASE_ADDRESS_MEM_MASK);
- pci_read_config_word(agp_bridge.dev,I830_GMCH_CTRL,&gmch_ctrl);
- gmch_ctrl |= I830_GMCH_ENABLED;
- pci_write_config_word(agp_bridge.dev,I830_GMCH_CTRL,gmch_ctrl);
- OUTREG32(intel_i830_private.registers,I810_PGETBL_CTL,agp_bridge.gatt_bus_addr | I810_PGETBL_ENABLED);
- CACHE_FLUSH();
- if (agp_bridge.needs_scratch_page == TRUE)
- for (i = intel_i830_private.gtt_entries; i < current_size->num_entries; i++)
- OUTREG32(intel_i830_private.registers,I810_PTE_BASE + (i * 4),agp_bridge.scratch_page);
- return (0);
- }
- static void intel_i830_cleanup(void)
- {
- iounmap((void *) intel_i830_private.registers);
- }
- static int intel_i830_insert_entries(agp_memory *mem,off_t pg_start,int type)
- {
- int i,j,num_entries;
- void *temp;
- temp = agp_bridge.current_size;
- num_entries = A_SIZE_FIX(temp)->num_entries;
- if (pg_start < intel_i830_private.gtt_entries) {
- printk (KERN_DEBUG "pg_start == 0x%.8lx,intel_i830_private.gtt_entries == 0x%.8xn",
- pg_start,intel_i830_private.gtt_entries);
- printk ("Trying to insert into local/stolen memoryn");
- return (-EINVAL);
- }
- if ((pg_start + mem->page_count) > num_entries)
- return (-EINVAL);
- /* The i830 can't check the GTT for entries since its read only,
- * depend on the caller to make the correct offset decisions.
- */
- if ((type != 0 && type != AGP_PHYS_MEMORY) ||
- (mem->type != 0 && mem->type != AGP_PHYS_MEMORY))
- return (-EINVAL);
- CACHE_FLUSH();
- for (i = 0, j = pg_start; i < mem->page_count; i++, j++)
- OUTREG32(intel_i830_private.registers,I810_PTE_BASE + (j * 4),mem->memory[i]);
- CACHE_FLUSH();
- agp_bridge.tlb_flush(mem);
- return(0);
- }
- static int intel_i830_remove_entries(agp_memory *mem,off_t pg_start,int type)
- {
- int i;
- CACHE_FLUSH ();
- if (pg_start < intel_i830_private.gtt_entries) {
- printk ("Trying to disable local/stolen memoryn");
- return (-EINVAL);
- }
- for (i = pg_start; i < (mem->page_count + pg_start); i++)
- OUTREG32(intel_i830_private.registers,I810_PTE_BASE + (i * 4),agp_bridge.scratch_page);
- CACHE_FLUSH();
- agp_bridge.tlb_flush(mem);
- return (0);
- }
- static agp_memory *intel_i830_alloc_by_type(size_t pg_count,int type)
- {
- agp_memory *nw;
- /* always return NULL for now */
- if (type == AGP_DCACHE_MEMORY) return(NULL);
- if (type == AGP_PHYS_MEMORY) {
- unsigned long physical;
- /* The i830 requires a physical address to program
- * it's mouse pointer into hardware. However the
- * Xserver still writes to it through the agp
- * aperture
- */
- if (pg_count != 1) return(NULL);
- nw = agp_create_memory(1);
- if (nw == NULL) return(NULL);
- MOD_INC_USE_COUNT;
- nw->memory[0] = agp_bridge.agp_alloc_page();
- physical = nw->memory[0];
- if (nw->memory[0] == 0) {
- /* free this structure */
- agp_free_memory(nw);
- return(NULL);
- }
- nw->memory[0] = agp_bridge.mask_memory(virt_to_phys((void *) nw->memory[0]),type);
- nw->page_count = 1;
- nw->num_scratch_pages = 1;
- nw->type = AGP_PHYS_MEMORY;
- nw->physical = virt_to_phys((void *) physical);
- return(nw);
- }
- return(NULL);
- }
- static int __init intel_i830_setup(struct pci_dev *i830_dev)
- {
- intel_i830_private.i830_dev = i830_dev;
- agp_bridge.masks = intel_i810_masks;
- agp_bridge.num_of_masks = 3;
- agp_bridge.aperture_sizes = (void *) intel_i830_sizes;
- agp_bridge.size_type = FIXED_APER_SIZE;
- agp_bridge.num_aperture_sizes = 2;
- agp_bridge.dev_private_data = (void *) &intel_i830_private;
- agp_bridge.needs_scratch_page = TRUE;
- agp_bridge.configure = intel_i830_configure;
- agp_bridge.fetch_size = intel_i830_fetch_size;
- agp_bridge.cleanup = intel_i830_cleanup;
- agp_bridge.tlb_flush = intel_i810_tlbflush;
- agp_bridge.mask_memory = intel_i810_mask_memory;
- agp_bridge.agp_enable = intel_i810_agp_enable;
- agp_bridge.cache_flush = global_cache_flush;
- agp_bridge.create_gatt_table = intel_i830_create_gatt_table;
- agp_bridge.free_gatt_table = intel_i830_free_gatt_table;
- agp_bridge.insert_memory = intel_i830_insert_entries;
- agp_bridge.remove_memory = intel_i830_remove_entries;
- agp_bridge.alloc_by_type = intel_i830_alloc_by_type;
- agp_bridge.free_by_type = intel_i810_free_by_type;
- agp_bridge.agp_alloc_page = agp_generic_alloc_page;
- agp_bridge.agp_destroy_page = agp_generic_destroy_page;
- agp_bridge.suspend = agp_generic_suspend;
- agp_bridge.resume = agp_generic_resume;
- agp_bridge.cant_use_aperture = 0;
- return(0);
- }
- #endif /* CONFIG_AGP_I810 */
-
- #ifdef CONFIG_AGP_INTEL
- #endif /* CONFIG_AGP_I810 */
- #ifdef CONFIG_AGP_INTEL
- static int intel_fetch_size(void)
- {
- int i;
- u16 temp;
- aper_size_info_16 *values;
- pci_read_config_word(agp_bridge.dev, INTEL_APSIZE, &temp);
- values = A_SIZE_16(agp_bridge.aperture_sizes);
- for (i = 0; i < agp_bridge.num_aperture_sizes; i++) {
- if (temp == values[i].size_value) {
- agp_bridge.previous_size =
- agp_bridge.current_size = (void *) (values + i);
- agp_bridge.aperture_size_idx = i;
- return values[i].size;
- }
- }
- return 0;
- }
- static int intel_8xx_fetch_size(void)
- {
- int i;
- u8 temp;
- aper_size_info_8 *values;
- pci_read_config_byte(agp_bridge.dev, INTEL_APSIZE, &temp);
- values = A_SIZE_8(agp_bridge.aperture_sizes);
- for (i = 0; i < agp_bridge.num_aperture_sizes; i++) {
- if (temp == values[i].size_value) {
- agp_bridge.previous_size =
- agp_bridge.current_size = (void *) (values + i);
- agp_bridge.aperture_size_idx = i;
- return values[i].size;
- }
- }
- return 0;
- }
- static void intel_tlbflush(agp_memory * mem)
- {
- pci_write_config_dword(agp_bridge.dev, INTEL_AGPCTRL, 0x2200);
- pci_write_config_dword(agp_bridge.dev, INTEL_AGPCTRL, 0x2280);
- }
- static void intel_8xx_tlbflush(agp_memory * mem)
- {
- u32 temp;
- pci_read_config_dword(agp_bridge.dev, INTEL_AGPCTRL, &temp);
- pci_write_config_dword(agp_bridge.dev, INTEL_AGPCTRL, temp & ~(1 << 7));
- pci_read_config_dword(agp_bridge.dev, INTEL_AGPCTRL, &temp);
- pci_write_config_dword(agp_bridge.dev, INTEL_AGPCTRL, temp | (1 << 7));
- }
- static void intel_cleanup(void)
- {
- u16 temp;
- aper_size_info_16 *previous_size;
- previous_size = A_SIZE_16(agp_bridge.previous_size);
- pci_read_config_word(agp_bridge.dev, INTEL_NBXCFG, &temp);
- pci_write_config_word(agp_bridge.dev, INTEL_NBXCFG, temp & ~(1 << 9));
- pci_write_config_word(agp_bridge.dev, INTEL_APSIZE,
- previous_size->size_value);
- }
- static void intel_8xx_cleanup(void)
- {
- u16 temp;
- aper_size_info_8 *previous_size;
- previous_size = A_SIZE_8(agp_bridge.previous_size);
- pci_read_config_word(agp_bridge.dev, INTEL_NBXCFG, &temp);
- pci_write_config_word(agp_bridge.dev, INTEL_NBXCFG, temp & ~(1 << 9));
- pci_write_config_byte(agp_bridge.dev, INTEL_APSIZE,
- previous_size->size_value);
- }
- static int intel_configure(void)
- {
- u32 temp;
- u16 temp2;
- aper_size_info_16 *current_size;
- current_size = A_SIZE_16(agp_bridge.current_size);
- /* aperture size */
- pci_write_config_word(agp_bridge.dev, INTEL_APSIZE,
- current_size->size_value);
- /* address to map to */
- pci_read_config_dword(agp_bridge.dev, INTEL_APBASE, &temp);
- agp_bridge.gart_bus_addr = (temp & PCI_BASE_ADDRESS_MEM_MASK);
- /* attbase - aperture base */
- pci_write_config_dword(agp_bridge.dev, INTEL_ATTBASE,
- agp_bridge.gatt_bus_addr);
- /* agpctrl */
- pci_write_config_dword(agp_bridge.dev, INTEL_AGPCTRL, 0x2280);
- /* paccfg/nbxcfg */
- pci_read_config_word(agp_bridge.dev, INTEL_NBXCFG, &temp2);
- pci_write_config_word(agp_bridge.dev, INTEL_NBXCFG,
- (temp2 & ~(1 << 10)) | (1 << 9));
- /* clear any possible error conditions */
- pci_write_config_byte(agp_bridge.dev, INTEL_ERRSTS + 1, 7);
- return 0;
- }
- static void intel_820_tlbflush(agp_memory * mem)
- {
- return;
- }
- static void intel_820_cleanup(void)
- {
- u8 temp;
- aper_size_info_8 *previous_size;
- previous_size = A_SIZE_8(agp_bridge.previous_size);
- pci_read_config_byte(agp_bridge.dev, INTEL_I820_RDCR, &temp);
- pci_write_config_byte(agp_bridge.dev, INTEL_I820_RDCR,
- temp & ~(1 << 1));
- pci_write_config_byte(agp_bridge.dev, INTEL_APSIZE,
- previous_size->size_value);
- }
- static int intel_820_configure(void)
- {
- u32 temp;
- u8 temp2;
- aper_size_info_8 *current_size;
- current_size = A_SIZE_8(agp_bridge.current_size);
- /* aperture size */
- pci_write_config_byte(agp_bridge.dev, INTEL_APSIZE,
- current_size->size_value);
- /* address to map to */
- pci_read_config_dword(agp_bridge.dev, INTEL_APBASE, &temp);
- agp_bridge.gart_bus_addr = (temp & PCI_BASE_ADDRESS_MEM_MASK);
- /* attbase - aperture base */
- pci_write_config_dword(agp_bridge.dev, INTEL_ATTBASE,
- agp_bridge.gatt_bus_addr);
- /* agpctrl */
- pci_write_config_dword(agp_bridge.dev, INTEL_AGPCTRL, 0x0000);
- /* global enable aperture access */
- /* This flag is not accessed through MCHCFG register as in */
- /* i850 chipset. */
- pci_read_config_byte(agp_bridge.dev, INTEL_I820_RDCR, &temp2);
- pci_write_config_byte(agp_bridge.dev, INTEL_I820_RDCR,
- temp2 | (1 << 1));
- /* clear any possible AGP-related error conditions */
- pci_write_config_word(agp_bridge.dev, INTEL_I820_ERRSTS, 0x001c);
- return 0;
- }
- static int intel_830mp_configure(void)
- {
- u32 temp;
- u16 temp2;
- aper_size_info_8 *current_size;
- current_size = A_SIZE_8(agp_bridge.current_size);
- /* aperture size */
- pci_write_config_byte(agp_bridge.dev, INTEL_APSIZE,
- current_size->size_value);
- /* address to map to */
- pci_read_config_dword(agp_bridge.dev, INTEL_APBASE, &temp);
- agp_bridge.gart_bus_addr = (temp & PCI_BASE_ADDRESS_MEM_MASK);
- /* attbase - aperture base */
- pci_write_config_dword(agp_bridge.dev, INTEL_ATTBASE,
- agp_bridge.gatt_bus_addr);
- /* agpctrl */
- pci_write_config_dword(agp_bridge.dev, INTEL_AGPCTRL, 0x0000);
- /* gmch */
- pci_read_config_word(agp_bridge.dev, INTEL_NBXCFG, &temp2);
- pci_write_config_word(agp_bridge.dev, INTEL_NBXCFG,
- temp2 | (1 << 9));
- /* clear any possible AGP-related error conditions */
- pci_write_config_word(agp_bridge.dev, INTEL_I830_ERRSTS, 0x1c);
- return 0;
- }
-
- static int intel_840_configure(void)
- {
- u32 temp;
- u16 temp2;
- aper_size_info_8 *current_size;
- current_size = A_SIZE_8(agp_bridge.current_size);
- /* aperture size */
- pci_write_config_byte(agp_bridge.dev, INTEL_APSIZE,
- current_size->size_value);
- /* address to map to */
- pci_read_config_dword(agp_bridge.dev, INTEL_APBASE, &temp);
- agp_bridge.gart_bus_addr = (temp & PCI_BASE_ADDRESS_MEM_MASK);
- /* attbase - aperture base */
- pci_write_config_dword(agp_bridge.dev, INTEL_ATTBASE,
- agp_bridge.gatt_bus_addr);
- /* agpctrl */
- pci_write_config_dword(agp_bridge.dev, INTEL_AGPCTRL, 0x0000);
- /* mcgcfg */
- pci_read_config_word(agp_bridge.dev, INTEL_I840_MCHCFG, &temp2);
- pci_write_config_word(agp_bridge.dev, INTEL_I840_MCHCFG,
- temp2 | (1 << 9));
- /* clear any possible error conditions */
- pci_write_config_word(agp_bridge.dev, INTEL_I840_ERRSTS, 0xc000);
- return 0;
- }
- static int intel_845_configure(void)
- {
- u32 temp;
- u8 temp2;
- aper_size_info_8 *current_size;
- current_size = A_SIZE_8(agp_bridge.current_size);
- /* aperture size */
- pci_write_config_byte(agp_bridge.dev, INTEL_APSIZE,
- current_size->size_value);
- /* address to map to */
- pci_read_config_dword(agp_bridge.dev, INTEL_APBASE, &temp);
- agp_bridge.gart_bus_addr = (temp & PCI_BASE_ADDRESS_MEM_MASK);
- /* attbase - aperture base */
- pci_write_config_dword(agp_bridge.dev, INTEL_ATTBASE,
- agp_bridge.gatt_bus_addr);
- /* agpctrl */
- pci_write_config_dword(agp_bridge.dev, INTEL_AGPCTRL, 0x0000);
- /* agpm */
- pci_read_config_byte(agp_bridge.dev, INTEL_I845_AGPM, &temp2);
- pci_write_config_byte(agp_bridge.dev, INTEL_I845_AGPM,
- temp2 | (1 << 1));
- /* clear any possible error conditions */
- pci_write_config_word(agp_bridge.dev, INTEL_I845_ERRSTS, 0x001c);
- return 0;
- }
- static int intel_850_configure(void)
- {
- u32 temp;
- u16 temp2;
- aper_size_info_8 *current_size;
- current_size = A_SIZE_8(agp_bridge.current_size);
- /* aperture size */
- pci_write_config_byte(agp_bridge.dev, INTEL_APSIZE,
- current_size->size_value);
- /* address to map to */
- pci_read_config_dword(agp_bridge.dev, INTEL_APBASE, &temp);
- agp_bridge.gart_bus_addr = (temp & PCI_BASE_ADDRESS_MEM_MASK);
- /* attbase - aperture base */
- pci_write_config_dword(agp_bridge.dev, INTEL_ATTBASE,
- agp_bridge.gatt_bus_addr);
- /* agpctrl */
- pci_write_config_dword(agp_bridge.dev, INTEL_AGPCTRL, 0x0000);
- /* mcgcfg */
- pci_read_config_word(agp_bridge.dev, INTEL_I850_MCHCFG, &temp2);
- pci_write_config_word(agp_bridge.dev, INTEL_I850_MCHCFG,
- temp2 | (1 << 9));
- /* clear any possible AGP-related error conditions */
- pci_write_config_word(agp_bridge.dev, INTEL_I850_ERRSTS, 0x001c);
- return 0;
- }
- static int intel_860_configure(void)
- {
- u32 temp;
- u16 temp2;
- aper_size_info_8 *current_size;
- current_size = A_SIZE_8(agp_bridge.current_size);
- /* aperture size */
- pci_write_config_byte(agp_bridge.dev, INTEL_APSIZE,
- current_size->size_value);
- /* address to map to */
- pci_read_config_dword(agp_bridge.dev, INTEL_APBASE, &temp);
- agp_bridge.gart_bus_addr = (temp & PCI_BASE_ADDRESS_MEM_MASK);
- /* attbase - aperture base */
- pci_write_config_dword(agp_bridge.dev, INTEL_ATTBASE,
- agp_bridge.gatt_bus_addr);
- /* agpctrl */
- pci_write_config_dword(agp_bridge.dev, INTEL_AGPCTRL, 0x0000);
- /* mcgcfg */
- pci_read_config_word(agp_bridge.dev, INTEL_I860_MCHCFG, &temp2);
- pci_write_config_word(agp_bridge.dev, INTEL_I860_MCHCFG,
- temp2 | (1 << 9));
- /* clear any possible AGP-related error conditions */
- pci_write_config_word(agp_bridge.dev, INTEL_I860_ERRSTS, 0xf700);
- return 0;
- }
- static unsigned long intel_mask_memory(unsigned long addr, int type)
- {
- /* Memory type is ignored */
- return addr | agp_bridge.masks[0].mask;
- }
- static void intel_resume(void)
- {
- intel_configure();
- }
- /* Setup function */
- static gatt_mask intel_generic_masks[] =
- {
- {0x00000017, 0}
- };
- static aper_size_info_8 intel_8xx_sizes[7] =
- {
- {256, 65536, 6, 0},
- {128, 32768, 5, 32},
- {64, 16384, 4, 48},
- {32, 8192, 3, 56},
- {16, 4096, 2, 60},
- {8, 2048, 1, 62},
- {4, 1024, 0, 63}
- };
- static aper_size_info_16 intel_generic_sizes[7] =
- {
- {256, 65536, 6, 0},
- {128, 32768, 5, 32},
- {64, 16384, 4, 48},
- {32, 8192, 3, 56},
- {16, 4096, 2, 60},
- {8, 2048, 1, 62},
- {4, 1024, 0, 63}
- };
- static aper_size_info_8 intel_830mp_sizes[4] =
- {
- {256, 65536, 6, 0},
- {128, 32768, 5, 32},
- {64, 16384, 4, 48},
- {32, 8192, 3, 56}
- };
- static int __init intel_generic_setup (struct pci_dev *pdev)
- {
- agp_bridge.masks = intel_generic_masks;
- agp_bridge.num_of_masks = 1;
- agp_bridge.aperture_sizes = (void *) intel_generic_sizes;
- agp_bridge.size_type = U16_APER_SIZE;
- agp_bridge.num_aperture_sizes = 7;
- agp_bridge.dev_private_data = NULL;
- agp_bridge.needs_scratch_page = FALSE;
- agp_bridge.configure = intel_configure;
- agp_bridge.fetch_size = intel_fetch_size;
- agp_bridge.cleanup = intel_cleanup;
- agp_bridge.tlb_flush = intel_tlbflush;
- agp_bridge.mask_memory = intel_mask_memory;
- agp_bridge.agp_enable = agp_generic_agp_enable;
- agp_bridge.cache_flush = global_cache_flush;
- agp_bridge.create_gatt_table = agp_generic_create_gatt_table;
- agp_bridge.free_gatt_table = agp_generic_free_gatt_table;
- agp_bridge.insert_memory = agp_generic_insert_memory;
- agp_bridge.remove_memory = agp_generic_remove_memory;
- agp_bridge.alloc_by_type = agp_generic_alloc_by_type;
- agp_bridge.free_by_type = agp_generic_free_by_type;
- agp_bridge.agp_alloc_page = agp_generic_alloc_page;
- agp_bridge.agp_destroy_page = agp_generic_destroy_page;
- agp_bridge.suspend = agp_generic_suspend;
- agp_bridge.resume = intel_resume;
- agp_bridge.cant_use_aperture = 0;
- return 0;
-
- (void) pdev; /* unused */
- }
- static int __init intel_820_setup (struct pci_dev *pdev)
- {
- agp_bridge.masks = intel_generic_masks;
- agp_bridge.num_of_masks = 1;
- agp_bridge.aperture_sizes = (void *) intel_8xx_sizes;
- agp_bridge.size_type = U8_APER_SIZE;
- agp_bridge.num_aperture_sizes = 7;
- agp_bridge.dev_private_data = NULL;
- agp_bridge.needs_scratch_page = FALSE;
- agp_bridge.configure = intel_820_configure;
- agp_bridge.fetch_size = intel_8xx_fetch_size;
- agp_bridge.cleanup = intel_820_cleanup;
- agp_bridge.tlb_flush = intel_820_tlbflush;
- agp_bridge.mask_memory = intel_mask_memory;
- agp_bridge.agp_enable = agp_generic_agp_enable;
- agp_bridge.cache_flush = global_cache_flush;
- agp_bridge.create_gatt_table = agp_generic_create_gatt_table;
- agp_bridge.free_gatt_table = agp_generic_free_gatt_table;
- agp_bridge.insert_memory = agp_generic_insert_memory;
- agp_bridge.remove_memory = agp_generic_remove_memory;
- agp_bridge.alloc_by_type = agp_generic_alloc_by_type;
- agp_bridge.free_by_type = agp_generic_free_by_type;
- agp_bridge.agp_alloc_page = agp_generic_alloc_page;
- agp_bridge.agp_destroy_page = agp_generic_destroy_page;
- agp_bridge.suspend = agp_generic_suspend;
- agp_bridge.resume = agp_generic_resume;
- agp_bridge.cant_use_aperture = 0;
- return 0;
- (void) pdev; /* unused */
- }
- static int __init intel_830mp_setup (struct pci_dev *pdev)
- {
- agp_bridge.masks = intel_generic_masks;
- agp_bridge.num_of_masks = 1;
- agp_bridge.aperture_sizes = (void *) intel_830mp_sizes;
- agp_bridge.size_type = U8_APER_SIZE;
- agp_bridge.num_aperture_sizes = 4;
- agp_bridge.dev_private_data = NULL;
- agp_bridge.needs_scratch_page = FALSE;
- agp_bridge.configure = intel_830mp_configure;
- agp_bridge.fetch_size = intel_8xx_fetch_size;
- agp_bridge.cleanup = intel_8xx_cleanup;
- agp_bridge.tlb_flush = intel_8xx_tlbflush;
- agp_bridge.mask_memory = intel_mask_memory;
- agp_bridge.agp_enable = agp_generic_agp_enable;
- agp_bridge.cache_flush = global_cache_flush;
- agp_bridge.create_gatt_table = agp_generic_create_gatt_table;
- agp_bridge.free_gatt_table = agp_generic_free_gatt_table;
- agp_bridge.insert_memory = agp_generic_insert_memory;
- agp_bridge.remove_memory = agp_generic_remove_memory;
- agp_bridge.alloc_by_type = agp_generic_alloc_by_type;
- agp_bridge.free_by_type = agp_generic_free_by_type;
- agp_bridge.agp_alloc_page = agp_generic_alloc_page;
- agp_bridge.agp_destroy_page = agp_generic_destroy_page;
- agp_bridge.suspend = agp_generic_suspend;
- agp_bridge.resume = agp_generic_resume;
- agp_bridge.cant_use_aperture = 0;
- return 0;
- (void) pdev; /* unused */
- }
- static int __init intel_840_setup (struct pci_dev *pdev)
- {
- agp_bridge.masks = intel_generic_masks;
- agp_bridge.num_of_masks = 1;
- agp_bridge.aperture_sizes = (void *) intel_8xx_sizes;
- agp_bridge.size_type = U8_APER_SIZE;
- agp_bridge.num_aperture_sizes = 7;
- agp_bridge.dev_private_data = NULL;
- agp_bridge.needs_scratch_page = FALSE;
- agp_bridge.configure = intel_840_configure;
- agp_bridge.fetch_size = intel_8xx_fetch_size;
- agp_bridge.cleanup = intel_8xx_cleanup;
- agp_bridge.tlb_flush = intel_8xx_tlbflush;
- agp_bridge.mask_memory = intel_mask_memory;
- agp_bridge.agp_enable = agp_generic_agp_enable;
- agp_bridge.cache_flush = global_cache_flush;
- agp_bridge.create_gatt_table = agp_generic_create_gatt_table;
- agp_bridge.free_gatt_table = agp_generic_free_gatt_table;
- agp_bridge.insert_memory = agp_generic_insert_memory;
- agp_bridge.remove_memory = agp_generic_remove_memory;
- agp_bridge.alloc_by_type = agp_generic_alloc_by_type;
- agp_bridge.free_by_type = agp_generic_free_by_type;
- agp_bridge.agp_alloc_page = agp_generic_alloc_page;
- agp_bridge.agp_destroy_page = agp_generic_destroy_page;
- agp_bridge.suspend = agp_generic_suspend;
- agp_bridge.resume = agp_generic_resume;
- agp_bridge.cant_use_aperture = 0;
- return 0;
-
- (void) pdev; /* unused */
- }
- static int __init intel_845_setup (struct pci_dev *pdev)
- {
- agp_bridge.masks = intel_generic_masks;
- agp_bridge.num_of_masks = 1;
- agp_bridge.aperture_sizes = (void *) intel_8xx_sizes;
- agp_bridge.size_type = U8_APER_SIZE;
- agp_bridge.num_aperture_sizes = 7;
- agp_bridge.dev_private_data = NULL;
- agp_bridge.needs_scratch_page = FALSE;
- agp_bridge.configure = intel_845_configure;
- agp_bridge.fetch_size = intel_8xx_fetch_size;
- agp_bridge.cleanup = intel_8xx_cleanup;
- agp_bridge.tlb_flush = intel_8xx_tlbflush;
- agp_bridge.mask_memory = intel_mask_memory;
- agp_bridge.agp_enable = agp_generic_agp_enable;
- agp_bridge.cache_flush = global_cache_flush;
- agp_bridge.create_gatt_table = agp_generic_create_gatt_table;
- agp_bridge.free_gatt_table = agp_generic_free_gatt_table;
- agp_bridge.insert_memory = agp_generic_insert_memory;
- agp_bridge.remove_memory = agp_generic_remove_memory;
- agp_bridge.alloc_by_type = agp_generic_alloc_by_type;
- agp_bridge.free_by_type = agp_generic_free_by_type;
- agp_bridge.agp_alloc_page = agp_generic_alloc_page;
- agp_bridge.agp_destroy_page = agp_generic_destroy_page;
- agp_bridge.suspend = agp_generic_suspend;
- agp_bridge.resume = agp_generic_resume;
- agp_bridge.cant_use_aperture = 0;
- return 0;
-
- (void) pdev; /* unused */
- }
- static int __init intel_850_setup (struct pci_dev *pdev)
- {
- agp_bridge.masks = intel_generic_masks;
- agp_bridge.num_of_masks = 1;
- agp_bridge.aperture_sizes = (void *) intel_8xx_sizes;
- agp_bridge.size_type = U8_APER_SIZE;
- agp_bridge.num_aperture_sizes = 7;
- agp_bridge.dev_private_data = NULL;
- agp_bridge.needs_scratch_page = FALSE;
- agp_bridge.configure = intel_850_configure;
- agp_bridge.fetch_size = intel_8xx_fetch_size;
- agp_bridge.cleanup = intel_8xx_cleanup;
- agp_bridge.tlb_flush = intel_8xx_tlbflush;
- agp_bridge.mask_memory = intel_mask_memory;
- agp_bridge.agp_enable = agp_generic_agp_enable;
- agp_bridge.cache_flush = global_cache_flush;
- agp_bridge.create_gatt_table = agp_generic_create_gatt_table;
- agp_bridge.free_gatt_table = agp_generic_free_gatt_table;
- agp_bridge.insert_memory = agp_generic_insert_memory;
- agp_bridge.remove_memory = agp_generic_remove_memory;
- agp_bridge.alloc_by_type = agp_generic_alloc_by_type;
- agp_bridge.free_by_type = agp_generic_free_by_type;
- agp_bridge.agp_alloc_page = agp_generic_alloc_page;
- agp_bridge.agp_destroy_page = agp_generic_destroy_page;
- agp_bridge.suspend = agp_generic_suspend;
- agp_bridge.resume = agp_generic_resume;
- agp_bridge.cant_use_aperture = 0;
- return 0;
-
- (void) pdev; /* unused */
- }
- static int __init intel_860_setup (struct pci_dev *pdev)
- {
- agp_bridge.masks = intel_generic_masks;
- agp_bridge.num_of_masks = 1;
- agp_bridge.aperture_sizes = (void *) intel_8xx_sizes;
- agp_bridge.size_type = U8_APER_SIZE;
- agp_bridge.num_aperture_sizes = 7;
- agp_bridge.dev_private_data = NULL;
- agp_bridge.needs_scratch_page = FALSE;
- agp_bridge.configure = intel_860_configure;
- agp_bridge.fetch_size = intel_8xx_fetch_size;
- agp_bridge.cleanup = intel_8xx_cleanup;
- agp_bridge.tlb_flush = intel_8xx_tlbflush;
- agp_bridge.mask_memory = intel_mask_memory;
- agp_bridge.agp_enable = agp_generic_agp_enable;
- agp_bridge.cache_flush = global_cache_flush;
- agp_bridge.create_gatt_table = agp_generic_create_gatt_table;
- agp_bridge.free_gatt_table = agp_generic_free_gatt_table;
- agp_bridge.insert_memory = agp_generic_insert_memory;
- agp_bridge.remove_memory = agp_generic_remove_memory;
- agp_bridge.alloc_by_type = agp_generic_alloc_by_type;
- agp_bridge.free_by_type = agp_generic_free_by_type;
- agp_bridge.agp_alloc_page = agp_generic_alloc_page;
- agp_bridge.agp_destroy_page = agp_generic_destroy_page;
- agp_bridge.suspend = agp_generic_suspend;
- agp_bridge.resume = agp_generic_resume;
- agp_bridge.cant_use_aperture = 0;
- return 0;
- (void) pdev; /* unused */
- }
- #endif /* CONFIG_AGP_INTEL */
- #ifdef CONFIG_AGP_VIA
- static int via_fetch_size(void)
- {
- int i;
- u8 temp;
- aper_size_info_8 *values;
- values = A_SIZE_8(agp_bridge.aperture_sizes);
- pci_read_config_byte(agp_bridge.dev, VIA_APSIZE, &temp);
- for (i = 0; i < agp_bridge.num_aperture_sizes; i++) {
- if (temp == values[i].size_value) {
- agp_bridge.previous_size =
- agp_bridge.current_size = (void *) (values + i);
- agp_bridge.aperture_size_idx = i;
- return values[i].size;
- }
- }
- return 0;
- }
- static int via_configure(void)
- {
- u32 temp;
- aper_size_info_8 *current_size;
- current_size = A_SIZE_8(agp_bridge.current_size);
- /* aperture size */
- pci_write_config_byte(agp_bridge.dev, VIA_APSIZE,
- current_size->size_value);
- /* address to map too */
- pci_read_config_dword(agp_bridge.dev, VIA_APBASE, &temp);
- agp_bridge.gart_bus_addr = (temp & PCI_BASE_ADDRESS_MEM_MASK);
- /* GART control register */
- pci_write_config_dword(agp_bridge.dev, VIA_GARTCTRL, 0x0000000f);
- /* attbase - aperture GATT base */
- pci_write_config_dword(agp_bridge.dev, VIA_ATTBASE,
- (agp_bridge.gatt_bus_addr & 0xfffff000) | 3);
- return 0;
- }
- static void via_cleanup(void)
- {
- aper_size_info_8 *previous_size;
- previous_size = A_SIZE_8(agp_bridge.previous_size);
- pci_write_config_byte(agp_bridge.dev, VIA_APSIZE,
- previous_size->size_value);
- /* Do not disable by writing 0 to VIA_ATTBASE, it screws things up
- * during reinitialization.
- */
- }
- static void via_tlbflush(agp_memory * mem)
- {
- pci_write_config_dword(agp_bridge.dev, VIA_GARTCTRL, 0x0000008f);
- pci_write_config_dword(agp_bridge.dev, VIA_GARTCTRL, 0x0000000f);
- }
- static unsigned long via_mask_memory(unsigned long addr, int type)
- {
- /* Memory type is ignored */
- return addr | agp_bridge.masks[0].mask;
- }
- static aper_size_info_8 via_generic_sizes[7] =
- {
- {256, 65536, 6, 0},
- {128, 32768, 5, 128},
- {64, 16384, 4, 192},
- {32, 8192, 3, 224},
- {16, 4096, 2, 240},
- {8, 2048, 1, 248},
- {4, 1024, 0, 252}
- };
- static gatt_mask via_generic_masks[] =
- {
- {0x00000000, 0}
- };
- static int __init via_generic_setup (struct pci_dev *pdev)
- {
- agp_bridge.masks = via_generic_masks;
- agp_bridge.num_of_masks = 1;
- agp_bridge.aperture_sizes = (void *) via_generic_sizes;
- agp_bridge.size_type = U8_APER_SIZE;
- agp_bridge.num_aperture_sizes = 7;
- agp_bridge.dev_private_data = NULL;
- agp_bridge.needs_scratch_page = FALSE;
- agp_bridge.configure = via_configure;
- agp_bridge.fetch_size = via_fetch_size;
- agp_bridge.cleanup = via_cleanup;
- agp_bridge.tlb_flush = via_tlbflush;
- agp_bridge.mask_memory = via_mask_memory;
- agp_bridge.agp_enable = agp_generic_agp_enable;
- agp_bridge.cache_flush = global_cache_flush;
- agp_bridge.create_gatt_table = agp_generic_create_gatt_table;
- agp_bridge.free_gatt_table = agp_generic_free_gatt_table;
- agp_bridge.insert_memory = agp_generic_insert_memory;
- agp_bridge.remove_memory = agp_generic_remove_memory;
- agp_bridge.alloc_by_type = agp_generic_alloc_by_type;
- agp_bridge.free_by_type = agp_generic_free_by_type;
- agp_bridge.agp_alloc_page = agp_generic_alloc_page;
- agp_bridge.agp_destroy_page = agp_generic_destroy_page;
- agp_bridge.suspend = agp_generic_suspend;
- agp_bridge.resume = agp_generic_resume;
- agp_bridge.cant_use_aperture = 0;
- return 0;
-
- (void) pdev; /* unused */
- }
- #endif /* CONFIG_AGP_VIA */
- #ifdef CONFIG_AGP_SIS
- static int sis_fetch_size(void)
- {
- u8 temp_size;
- int i;
- aper_size_info_8 *values;
- pci_read_config_byte(agp_bridge.dev, SIS_APSIZE, &temp_size);
- values = A_SIZE_8(agp_bridge.aperture_sizes);
- for (i = 0; i < agp_bridge.num_aperture_sizes; i++) {
- if ((temp_size == values[i].size_value) ||
- ((temp_size & ~(0x03)) ==
- (values[i].size_value & ~(0x03)))) {
- agp_bridge.previous_size =
- agp_bridge.current_size = (void *) (values + i);
- agp_bridge.aperture_size_idx = i;
- return values[i].size;
- }
- }
- return 0;
- }
- static void sis_tlbflush(agp_memory * mem)
- {
- pci_write_config_byte(agp_bridge.dev, SIS_TLBFLUSH, 0x02);
- }
- static int sis_configure(void)
- {
- u32 temp;
- aper_size_info_8 *current_size;
- current_size = A_SIZE_8(agp_bridge.current_size);
- pci_write_config_byte(agp_bridge.dev, SIS_TLBCNTRL, 0x05);
- pci_read_config_dword(agp_bridge.dev, SIS_APBASE, &temp);
- agp_bridge.gart_bus_addr = (temp & PCI_BASE_ADDRESS_MEM_MASK);
- pci_write_config_dword(agp_bridge.dev, SIS_ATTBASE,
- agp_bridge.gatt_bus_addr);
- pci_write_config_byte(agp_bridge.dev, SIS_APSIZE,
- current_size->size_value);
- return 0;
- }
- static void sis_cleanup(void)
- {
- aper_size_info_8 *previous_size;
- previous_size = A_SIZE_8(agp_bridge.previous_size);
- pci_write_config_byte(agp_bridge.dev, SIS_APSIZE,
- (previous_size->size_value & ~(0x03)));
- }
- static unsigned long sis_mask_memory(unsigned long addr, int type)
- {
- /* Memory type is ignored */
- return addr | agp_bridge.masks[0].mask;
- }
- static aper_size_info_8 sis_generic_sizes[7] =
- {
- {256, 65536, 6, 99},
- {128, 32768, 5, 83},
- {64, 16384, 4, 67},
- {32, 8192, 3, 51},
- {16, 4096, 2, 35},
- {8, 2048, 1, 19},
- {4, 1024, 0, 3}
- };
- static gatt_mask sis_generic_masks[] =
- {
- {0x00000000, 0}
- };
- static int __init sis_generic_setup (struct pci_dev *pdev)
- {
- agp_bridge.masks = sis_generic_masks;
- agp_bridge.num_of_masks = 1;
- agp_bridge.aperture_sizes = (void *) sis_generic_sizes;
- agp_bridge.size_type = U8_APER_SIZE;
- agp_bridge.num_aperture_sizes = 7;
- agp_bridge.dev_private_data = NULL;
- agp_bridge.needs_scratch_page = FALSE;
- agp_bridge.configure = sis_configure;
- agp_bridge.fetch_size = sis_fetch_size;
- agp_bridge.cleanup = sis_cleanup;
- agp_bridge.tlb_flush = sis_tlbflush;
- agp_bridge.mask_memory = sis_mask_memory;
- agp_bridge.agp_enable = agp_generic_agp_enable;
- agp_bridge.cache_flush = global_cache_flush;
- agp_bridge.create_gatt_table = agp_generic_create_gatt_table;
- agp_bridge.free_gatt_table = agp_generic_free_gatt_table;
- agp_bridge.insert_memory = agp_generic_insert_memory;
- agp_bridge.remove_memory = agp_generic_remove_memory;
- agp_bridge.alloc_by_type = agp_generic_alloc_by_type;
- agp_bridge.free_by_type = agp_generic_free_by_type;
- agp_bridge.agp_alloc_page = agp_generic_alloc_page;
- agp_bridge.agp_destroy_page = agp_generic_destroy_page;
- agp_bridge.suspend = agp_generic_suspend;
- agp_bridge.resume = agp_generic_resume;
- agp_bridge.cant_use_aperture = 0;
- return 0;
- }
- #endif /* CONFIG_AGP_SIS */
- #ifdef CONFIG_AGP_AMD
- typedef struct _amd_page_map {
- unsigned long *real;
- unsigned long *remapped;
- } amd_page_map;
- static struct _amd_irongate_private {
- volatile u8 *registers;
- amd_page_map **gatt_pages;
- int num_tables;
- } amd_irongate_private;
- static int amd_create_page_map(amd_page_map *page_map)
- {
- int i;
- page_map->real = (unsigned long *) __get_free_page(GFP_KERNEL);
- if (page_map->real == NULL) {
- return -ENOMEM;
- }
- set_bit(PG_reserved, &virt_to_page(page_map->real)->flags);
- CACHE_FLUSH();
- page_map->remapped = ioremap_nocache(virt_to_phys(page_map->real),
- PAGE_SIZE);
- if (page_map->remapped == NULL) {
- clear_bit(PG_reserved,
- &virt_to_page(page_map->real)->flags);
- free_page((unsigned long) page_map->real);
- page_map->real = NULL;
- return -ENOMEM;
- }
- CACHE_FLUSH();
- for(i = 0; i < PAGE_SIZE / sizeof(unsigned long); i++) {
- page_map->remapped[i] = agp_bridge.scratch_page;
- }
- return 0;
- }
- static void amd_free_page_map(amd_page_map *page_map)
- {
- iounmap(page_map->remapped);
- clear_bit(PG_reserved,
- &virt_to_page(page_map->real)->flags);
- free_page((unsigned long) page_map->real);
- }
- static void amd_free_gatt_pages(void)
- {
- int i;
- amd_page_map **tables;
- amd_page_map *entry;
- tables = amd_irongate_private.gatt_pages;
- for(i = 0; i < amd_irongate_private.num_tables; i++) {
- entry = tables[i];
- if (entry != NULL) {
- if (entry->real != NULL) {
- amd_free_page_map(entry);
- }
- kfree(entry);
- }
- }
- kfree(tables);
- }
- static int amd_create_gatt_pages(int nr_tables)
- {
- amd_page_map **tables;
- amd_page_map *entry;
- int retval = 0;
- int i;
- tables = kmalloc((nr_tables + 1) * sizeof(amd_page_map *),
- GFP_KERNEL);
- if (tables == NULL) {
- return -ENOMEM;
- }
- memset(tables, 0, sizeof(amd_page_map *) * (nr_tables + 1));
- for (i = 0; i < nr_tables; i++) {
- entry = kmalloc(sizeof(amd_page_map), GFP_KERNEL);
- if (entry == NULL) {
- retval = -ENOMEM;
- break;
- }
- memset(entry, 0, sizeof(amd_page_map));
- tables[i] = entry;
- retval = amd_create_page_map(entry);
- if (retval != 0) break;
- }
- amd_irongate_private.num_tables = nr_tables;
- amd_irongate_private.gatt_pages = tables;
- if (retval != 0) amd_free_gatt_pages();
- return retval;
- }
- /* Since we don't need contigious memory we just try
- * to get the gatt table once
- */
- #define GET_PAGE_DIR_OFF(addr) (addr >> 22)
- #define GET_PAGE_DIR_IDX(addr) (GET_PAGE_DIR_OFF(addr) -
- GET_PAGE_DIR_OFF(agp_bridge.gart_bus_addr))
- #define GET_GATT_OFF(addr) ((addr & 0x003ff000) >> 12)
- #define GET_GATT(addr) (amd_irongate_private.gatt_pages[
- GET_PAGE_DIR_IDX(addr)]->remapped)
- static int amd_create_gatt_table(void)
- {
- aper_size_info_lvl2 *value;
- amd_page_map page_dir;
- unsigned long addr;
- int retval;
- u32 temp;
- int i;
- value = A_SIZE_LVL2(agp_bridge.current_size);
- retval = amd_create_page_map(&page_dir);
- if (retval != 0) {
- return retval;
- }
- retval = amd_create_gatt_pages(value->num_entries / 1024);
- if (retval != 0) {
- amd_free_page_map(&page_dir);
- return retval;
- }
- agp_bridge.gatt_table_real = page_dir.real;
- agp_bridge.gatt_table = page_dir.remapped;
- agp_bridge.gatt_bus_addr = virt_to_bus(page_dir.real);
- /* Get the address for the gart region.
- * This is a bus address even on the alpha, b/c its
- * used to program the agp master not the cpu
- */
- pci_read_config_dword(agp_bridge.dev, AMD_APBASE, &temp);
- addr = (temp & PCI_BASE_ADDRESS_MEM_MASK);
- agp_bridge.gart_bus_addr = addr;
- /* Calculate the agp offset */
- for(i = 0; i < value->num_entries / 1024; i++, addr += 0x00400000) {
- page_dir.remapped[GET_PAGE_DIR_OFF(addr)] =
- virt_to_bus(amd_irongate_private.gatt_pages[i]->real);
- page_dir.remapped[GET_PAGE_DIR_OFF(addr)] |= 0x00000001;
- }
- return 0;
- }
- static int amd_free_gatt_table(void)
- {
- amd_page_map page_dir;
-
- page_dir.real = agp_bridge.gatt_table_real;
- page_dir.remapped = agp_bridge.gatt_table;
- amd_free_gatt_pages();
- amd_free_page_map(&page_dir);
- return 0;
- }
- static int amd_irongate_fetch_size(void)
- {
- int i;
- u32 temp;
- aper_size_info_lvl2 *values;
- pci_read_config_dword(agp_bridge.dev, AMD_APSIZE, &temp);
- temp = (temp & 0x0000000e);
- values = A_SIZE_LVL2(agp_bridge.aperture_sizes);
- for (i = 0; i < agp_bridge.num_aperture_sizes; i++) {
- if (temp == values[i].size_value) {
- agp_bridge.previous_size =
- agp_bridge.current_size = (void *) (values + i);
- agp_bridge.aperture_size_idx = i;
- return values[i].size;
- }
- }
- return 0;
- }
- static int amd_irongate_configure(void)
- {
- aper_size_info_lvl2 *current_size;
- u32 temp;
- u16 enable_reg;
- current_size = A_SIZE_LVL2(agp_bridge.current_size);
- /* Get the memory mapped registers */
- pci_read_config_dword(agp_bridge.dev, AMD_MMBASE, &temp);
- temp = (temp & PCI_BASE_ADDRESS_MEM_MASK);
- amd_irongate_private.registers = (volatile u8 *) ioremap(temp, 4096);
- /* Write out the address of the gatt table */
- OUTREG32(amd_irongate_private.registers, AMD_ATTBASE,
- agp_bridge.gatt_bus_addr);
- /* Write the Sync register */
- pci_write_config_byte(agp_bridge.dev, AMD_MODECNTL, 0x80);
-
- /* Set indexing mode */
- pci_write_config_byte(agp_bridge.dev, AMD_MODECNTL2, 0x00);
- /* Write the enable register */
- enable_reg = INREG16(amd_irongate_private.registers, AMD_GARTENABLE);
- enable_reg = (enable_reg | 0x0004);
- OUTREG16(amd_irongate_private.registers, AMD_GARTENABLE, enable_reg);
- /* Write out the size register */
- pci_read_config_dword(agp_bridge.dev, AMD_APSIZE, &temp);
- temp = (((temp & ~(0x0000000e)) | current_size->size_value)
- | 0x00000001);
- pci_write_config_dword(agp_bridge.dev, AMD_APSIZE, temp);
- /* Flush the tlb */
- OUTREG32(amd_irongate_private.registers, AMD_TLBFLUSH, 0x00000001);
- return 0;
- }
- static void amd_irongate_cleanup(void)
- {
- aper_size_info_lvl2 *previous_size;
- u32 temp;
- u16 enable_reg;
- previous_size = A_SIZE_LVL2(agp_bridge.previous_size);
- enable_reg = INREG16(amd_irongate_private.registers, AMD_GARTENABLE);
- enable_reg = (enable_reg & ~(0x0004));
- OUTREG16(amd_irongate_private.registers, AMD_GARTENABLE, enable_reg);
- /* Write back the previous size and disable gart translation */
- pci_read_config_dword(agp_bridge.dev, AMD_APSIZE, &temp);
- temp = ((temp & ~(0x0000000f)) | previous_size->size_value);
- pci_write_config_dword(agp_bridge.dev, AMD_APSIZE, temp);
- iounmap((void *) amd_irongate_private.registers);
- }
- /*
- * This routine could be implemented by taking the addresses
- * written to the GATT, and flushing them individually. However
- * currently it just flushes the whole table. Which is probably
- * more efficent, since agp_memory blocks can be a large number of
- * entries.
- */
- static void amd_irongate_tlbflush(agp_memory * temp)
- {
- OUTREG32(amd_irongate_private.registers, AMD_TLBFLUSH, 0x00000001);
- }
- static unsigned long amd_irongate_mask_memory(unsigned long addr, int type)
- {
- /* Only type 0 is supported by the irongate */
- return addr | agp_bridge.masks[0].mask;
- }
- static int amd_insert_memory(agp_memory * mem,
- off_t pg_start, int type)
- {
- int i, j, num_entries;
- unsigned long *cur_gatt;
- unsigned long addr;
- num_entries = A_SIZE_LVL2(agp_bridge.current_size)->num_entries;
- if (type != 0 || mem->type != 0) {
- return -EINVAL;
- }
- if ((pg_start + mem->page_count) > num_entries) {
- return -EINVAL;
- }
- j = pg_start;
- while (j < (pg_start + mem->page_count)) {
- addr = (j * PAGE_SIZE) + agp_bridge.gart_bus_addr;
- cur_gatt = GET_GATT(addr);
- if (!PGE_EMPTY(cur_gatt[GET_GATT_OFF(addr)])) {
- return -EBUSY;
- }
- j++;
- }
- if (mem->is_flushed == FALSE) {
- CACHE_FLUSH();
- mem->is_flushed = TRUE;
- }
- for (i = 0, j = pg_start; i < mem->page_count; i++, j++) {
- addr = (j * PAGE_SIZE) + agp_bridge.gart_bus_addr;
- cur_gatt = GET_GATT(addr);
- cur_gatt[GET_GATT_OFF(addr)] = mem->memory[i];
- }
- agp_bridge.tlb_flush(mem);
- return 0;
- }
- static int amd_remove_memory(agp_memory * mem, off_t pg_start,
- int type)
- {
- int i;
- unsigned long *cur_gatt;
- unsigned long addr;
- if (type != 0 || mem->type != 0) {
- return -EINVAL;
- }
- for (i = pg_start; i < (mem->page_count + pg_start); i++) {
- addr = (i * PAGE_SIZE) + agp_bridge.gart_bus_addr;
- cur_gatt = GET_GATT(addr);
- cur_gatt[GET_GATT_OFF(addr)] =
- (unsigned long) agp_bridge.scratch_page;
- }
- agp_bridge.tlb_flush(mem);
- return 0;
- }
- static aper_size_info_lvl2 amd_irongate_sizes[7] =
- {
- {2048, 524288, 0x0000000c},
- {1024, 262144, 0x0000000a},
- {512, 131072, 0x00000008},
- {256, 65536, 0x00000006},
- {128, 32768, 0x00000004},
- {64, 16384, 0x00000002},
- {32, 8192, 0x00000000}
- };
- static gatt_mask amd_irongate_masks[] =
- {
- {0x00000001, 0}
- };
- static int __init amd_irongate_setup (struct pci_dev *pdev)
- {
- agp_bridge.masks = amd_irongate_masks;
- agp_bridge.num_of_masks = 1;
- agp_bridge.aperture_sizes = (void *) amd_irongate_sizes;
- agp_bridge.size_type = LVL2_APER_SIZE;
- agp_bridge.num_aperture_sizes = 7;
- agp_bridge.dev_private_data = (void *) &amd_irongate_private;
- agp_bridge.needs_scratch_page = FALSE;
- agp_bridge.configure = amd_irongate_configure;
- agp_bridge.fetch_size = amd_irongate_fetch_size;
- agp_bridge.cleanup = amd_irongate_cleanup;
- agp_bridge.tlb_flush = amd_irongate_tlbflush;
- agp_bridge.mask_memory = amd_irongate_mask_memory;
- agp_bridge.agp_enable = agp_generic_agp_enable;
- agp_bridge.cache_flush = global_cache_flush;
- agp_bridge.create_gatt_table = amd_create_gatt_table;
- agp_bridge.free_gatt_table = amd_free_gatt_table;
- agp_bridge.insert_memory = amd_insert_memory;
- agp_bridge.remove_memory = amd_remove_memory;
- agp_bridge.alloc_by_type = agp_generic_alloc_by_type;
- agp_bridge.free_by_type = agp_generic_free_by_type;
- agp_bridge.agp_alloc_page = agp_generic_alloc_page;
- agp_bridge.agp_destroy_page = agp_generic_destroy_page;
- agp_bridge.suspend = agp_generic_suspend;
- agp_bridge.resume = agp_generic_resume;
- agp_bridge.cant_use_aperture = 0;
- return 0;
-
- (void) pdev; /* unused */
- }
- #endif /* CONFIG_AGP_AMD */
- #ifdef CONFIG_AGP_ALI
- static int ali_fetch_size(void)
- {
- int i;
- u32 temp;
- aper_size_info_32 *values;
- pci_read_config_dword(agp_bridge.dev, ALI_ATTBASE, &temp);
- temp &= ~(0xfffffff0);
- values = A_SIZE_32(agp_bridge.aperture_sizes);
- for (i = 0; i < agp_bridge.num_aperture_sizes; i++) {
- if (temp == values[i].size_value) {
- agp_bridge.previous_size =
- agp_bridge.current_size = (void *) (values + i);
- agp_bridge.aperture_size_idx = i;
- return values[i].size;
- }
- }
- return 0;
- }
- static void ali_tlbflush(agp_memory * mem)
- {
- u32 temp;
- pci_read_config_dword(agp_bridge.dev, ALI_TLBCTRL, &temp);
- // clear tag
- pci_write_config_dword(agp_bridge.dev, ALI_TAGCTRL,
- ((temp & 0xfffffff0) | 0x00000001|0x00000002));
- }
- static void ali_cleanup(void)
- {
- aper_size_info_32 *previous_size;
- u32 temp;
- previous_size = A_SIZE_32(agp_bridge.previous_size);
- pci_read_config_dword(agp_bridge.dev, ALI_TLBCTRL, &temp);
- // clear tag
- pci_write_config_dword(agp_bridge.dev, ALI_TAGCTRL,
- ((temp & 0xffffff00) | 0x00000001|0x00000002));
- pci_read_config_dword(agp_bridge.dev, ALI_ATTBASE, &temp);
- pci_write_config_dword(agp_bridge.dev, ALI_ATTBASE,
- ((temp & 0x00000ff0) | previous_size->size_value));
- }
- static int ali_configure(void)
- {
- u32 temp;
- aper_size_info_32 *current_size;
- current_size = A_SIZE_32(agp_bridge.current_size);
- /* aperture size and gatt addr */
- pci_read_config_dword(agp_bridge.dev, ALI_ATTBASE, &temp);
- temp = (((temp & 0x00000ff0) | (agp_bridge.gatt_bus_addr & 0xfffff000))
- | (current_size->size_value & 0xf));
- pci_write_config_dword(agp_bridge.dev, ALI_ATTBASE, temp);
- /* tlb control */
- /*
- * Question: Jeff, ALi's patch deletes this:
- *
- * pci_read_config_dword(agp_bridge.dev, ALI_TLBCTRL, &temp);
- * pci_write_config_dword(agp_bridge.dev, ALI_TLBCTRL,
- * ((temp & 0xffffff00) | 0x00000010));
- *
- * and replaces it with the following, which seems to duplicate the
- * next couple of lines below it. I suspect this was an oversight,
- * but you might want to check up on this?
- */
-
- pci_read_config_dword(agp_bridge.dev, ALI_APBASE, &temp);
- agp_bridge.gart_bus_addr = (temp & PCI_BASE_ADDRESS_MEM_MASK);
- /* address to map to */
- pci_read_config_dword(agp_bridge.dev, ALI_APBASE, &temp);
- agp_bridge.gart_bus_addr = (temp & PCI_BASE_ADDRESS_MEM_MASK);
- #if 0
- if (agp_bridge.type == ALI_M1541) {
- u32 nlvm_addr = 0;
- switch (current_size->size_value) {
- case 0: break;
- case 1: nlvm_addr = 0x100000;break;
- case 2: nlvm_addr = 0x200000;break;
- case 3: nlvm_addr = 0x400000;break;
- case 4: nlvm_addr = 0x800000;break;
- case 6: nlvm_addr = 0x1000000;break;
- case 7: nlvm_addr = 0x2000000;break;
- case 8: nlvm_addr = 0x4000000;break;
- case 9: nlvm_addr = 0x8000000;break;
- case 10: nlvm_addr = 0x10000000;break;
- default: break;
- }
- nlvm_addr--;
- nlvm_addr&=0xfff00000;
- nlvm_addr+= agp_bridge.gart_bus_addr;
- nlvm_addr|=(agp_bridge.gart_bus_addr>>12);
- printk(KERN_INFO PFX "nlvm top &base = %8xn",nlvm_addr);
- }
- #endif
- pci_read_config_dword(agp_bridge.dev, ALI_TLBCTRL, &temp);
- temp &= 0xffffff7f; //enable TLB
- pci_write_config_dword(agp_bridge.dev, ALI_TLBCTRL, temp);
- return 0;
- }
- static unsigned long ali_mask_memory(unsigned long addr, int type)
- {
- /* Memory type is ignored */
- return addr | agp_bridge.masks[0].mask;
- }
- static void ali_cache_flush(void)
- {
- global_cache_flush();
- if (agp_bridge.type == ALI_M1541) {
- int i, page_count;
- u32 temp;
- page_count = 1 << A_SIZE_32(agp_bridge.current_size)->page_order;
- for (i = 0; i < PAGE_SIZE * page_count; i += PAGE_SIZE) {
- pci_read_config_dword(agp_bridge.dev, ALI_CACHE_FLUSH_CTRL, &temp);
- pci_write_config_dword(agp_bridge.dev, ALI_CACHE_FLUSH_CTRL,
- (((temp & ALI_CACHE_FLUSH_ADDR_MASK) |
- (agp_bridge.gatt_bus_addr + i)) |
- ALI_CACHE_FLUSH_EN));
- }
- }
- }
- static unsigned long ali_alloc_page(void)
- {
- struct page *page;
- u32 temp;
- page = alloc_page(GFP_KERNEL);
- if (page == NULL)
- return 0;
- atomic_inc(&page->count);
- set_bit(PG_locked, &page->flags);
- atomic_inc(&agp_bridge.current_memory_agp);
- global_cache_flush();
- if (agp_bridge.type == ALI_M1541) {
- pci_read_config_dword(agp_bridge.dev, ALI_CACHE_FLUSH_CTRL, &temp);
- pci_write_config_dword(agp_bridge.dev, ALI_CACHE_FLUSH_CTRL,
- (((temp & ALI_CACHE_FLUSH_ADDR_MASK) |
- virt_to_phys(page_address(page))) |
- ALI_CACHE_FLUSH_EN ));
- }
- return (unsigned long)page_address(page);
- }
- static void ali_destroy_page(unsigned long addr)
- {
- u32 temp;
- void *pt = (void *) addr;
- struct page *page;
- if (pt == NULL)
- return;
- global_cache_flush();
- if (agp_bridge.type == ALI_M1541) {
- pci_read_config_dword(agp_bridge.dev, ALI_CACHE_FLUSH_CTRL, &temp);
- pci_write_config_dword(agp_bridge.dev, ALI_CACHE_FLUSH_CTRL,
- (((temp & ALI_CACHE_FLUSH_ADDR_MASK) |
- virt_to_phys((void *)pt)) |
- ALI_CACHE_FLUSH_EN));
- }
- page = virt_to_page(pt);
- atomic_dec(&page->count);
- clear_bit(PG_locked, &page->flags);
- wake_up(&page->wait);
- free_page((unsigned long) pt);
- atomic_dec(&agp_bridge.current_memory_agp);
- }
- /* Setup function */
- static gatt_mask ali_generic_masks[] =
- {
- {0x00000000, 0}
- };
- static aper_size_info_32 ali_generic_sizes[7] =
- {
- {256, 65536, 6, 10},
- {128, 32768, 5, 9},
- {64, 16384, 4, 8},
- {32, 8192, 3, 7},
- {16, 4096, 2, 6},
- {8, 2048, 1, 4},
- {4, 1024, 0, 3}
- };
- static int __init ali_generic_setup (struct pci_dev *pdev)
- {
- agp_bridge.masks = ali_generic_masks;
- agp_bridge.num_of_masks = 1;
- agp_bridge.aperture_sizes = (void *) ali_generic_sizes;
- agp_bridge.size_type = U32_APER_SIZE;
- agp_bridge.num_aperture_sizes = 7;
- agp_bridge.dev_private_data = NULL;
- agp_bridge.needs_scratch_page = FALSE;
- agp_bridge.configure = ali_configure;
- agp_bridge.fetch_size = ali_fetch_size;
- agp_bridge.cleanup = ali_cleanup;
- agp_bridge.tlb_flush = ali_tlbflush;
- agp_bridge.mask_memory = ali_mask_memory;
- agp_bridge.agp_enable = agp_generic_agp_enable;
- agp_bridge.cache_flush = ali_cache_flush;
- agp_bridge.create_gatt_table = agp_generic_create_gatt_table;
- agp_bridge.free_gatt_table = agp_generic_free_gatt_table;
- agp_bridge.insert_memory = agp_generic_insert_memory;
- agp_bridge.remove_memory = agp_generic_remove_memory;
- agp_bridge.alloc_by_type = agp_generic_alloc_by_type;
- agp_bridge.free_by_type = agp_generic_free_by_type;
- agp_bridge.agp_alloc_page = ali_alloc_page;
- agp_bridge.agp_destroy_page = ali_destroy_page;
- agp_bridge.suspend = agp_generic_suspend;
- agp_bridge.resume = agp_generic_resume;
- agp_bridge.cant_use_aperture = 0;
- return 0;
-
- (void) pdev; /* unused */
- }
- #endif /* CONFIG_AGP_ALI */
- #ifdef CONFIG_AGP_SWORKS
- typedef struct _serverworks_page_map {
- unsigned long *real;
- unsigned long *remapped;
- } serverworks_page_map;
- static struct _serverworks_private {
- struct pci_dev *svrwrks_dev; /* device one */
- volatile u8 *registers;
- serverworks_page_map **gatt_pages;
- int num_tables;
- serverworks_page_map scratch_dir;
- int gart_addr_ofs;
- int mm_addr_ofs;
- } serverworks_private;
- static int serverworks_create_page_map(serverworks_page_map *page_map)
- {
- int i;
- page_map->real = (unsigned long *) __get_free_page(GFP_KERNEL);
- if (page_map->real == NULL) {
- return -ENOMEM;
- }
- set_bit(PG_reserved, &virt_to_page(page_map->real)->flags);
- CACHE_FLUSH();
- page_map->remapped = ioremap_nocache(virt_to_phys(page_map->real),
- PAGE_SIZE);
- if (page_map->remapped == NULL) {
- clear_bit(PG_reserved,
- &virt_to_page(page_map->real)->flags);
- free_page((unsigned long) page_map->real);
- page_map->real = NULL;
- return -ENOMEM;
- }
- CACHE_FLUSH();
- for(i = 0; i < PAGE_SIZE / sizeof(unsigned long); i++) {
- page_map->remapped[i] = agp_bridge.scratch_page;
- }
- return 0;
- }
- static void serverworks_free_page_map(serverworks_page_map *page_map)
- {
- iounmap(page_map->remapped);
- clear_bit(PG_reserved,
- &virt_to_page(page_map->real)->flags);
- free_page((unsigned long) page_map->real);
- }
- static void serverworks_free_gatt_pages(void)
- {
- int i;
- serverworks_page_map **tables;
- serverworks_page_map *entry;
- tables = serverworks_private.gatt_pages;
- for(i = 0; i < serverworks_private.num_tables; i++) {
- entry = tables[i];
- if (entry != NULL) {
- if (entry->real != NULL) {
- serverworks_free_page_map(entry);
- }
- kfree(entry);
- }
- }
- kfree(tables);
- }
- static int serverworks_create_gatt_pages(int nr_tables)
- {
- serverworks_page_map **tables;
- serverworks_page_map *entry;
- int retval = 0;
- int i;
- tables = kmalloc((nr_tables + 1) * sizeof(serverworks_page_map *),
- GFP_KERNEL);
- if (tables == NULL) {
- return -ENOMEM;
- }
- memset(tables, 0, sizeof(serverworks_page_map *) * (nr_tables + 1));
- for (i = 0; i < nr_tables; i++) {
- entry = kmalloc(sizeof(serverworks_page_map), GFP_KERNEL);
- if (entry == NULL) {
- retval = -ENOMEM;
- break;
- }
- memset(entry, 0, sizeof(serverworks_page_map));
- tables[i] = entry;
- retval = serverworks_create_page_map(entry);
- if (retval != 0) break;
- }
- serverworks_private.num_tables = nr_tables;
- serverworks_private.gatt_pages = tables;
- if (retval != 0) serverworks_free_gatt_pages();
- return retval;
- }
- #define SVRWRKS_GET_GATT(addr) (serverworks_private.gatt_pages[
- GET_PAGE_DIR_IDX(addr)]->remapped)
- #ifndef GET_PAGE_DIR_OFF
- #define GET_PAGE_DIR_OFF(addr) (addr >> 22)
- #endif
- #ifndef GET_PAGE_DIR_IDX
- #define GET_PAGE_DIR_IDX(addr) (GET_PAGE_DIR_OFF(addr) -
- GET_PAGE_DIR_OFF(agp_bridge.gart_bus_addr))
- #endif
- #ifndef GET_GATT_OFF
- #define GET_GATT_OFF(addr) ((addr & 0x003ff000) >> 12)
- #endif
- static int serverworks_create_gatt_table(void)
- {
- aper_size_info_lvl2 *value;
- serverworks_page_map page_dir;
- int retval;
- u32 temp;
- int i;
- value = A_SIZE_LVL2(agp_bridge.current_size);
- retval = serverworks_create_page_map(&page_dir);
- if (retval != 0) {
- return retval;
- }
- retval = serverworks_create_page_map(&serverworks_private.scratch_dir);
- if (retval != 0) {
- serverworks_free_page_map(&page_dir);
- return retval;
- }
- /* Create a fake scratch directory */
- for(i = 0; i < 1024; i++) {
- serverworks_private.scratch_dir.remapped[i] = (unsigned long) agp_bridge.scratch_page;
- page_dir.remapped[i] =
- virt_to_bus(serverworks_private.scratch_dir.real);
- page_dir.remapped[i] |= 0x00000001;
- }
- retval = serverworks_create_gatt_pages(value->num_entries / 1024);
- if (retval != 0) {
- serverworks_free_page_map(&page_dir);
- serverworks_free_page_map(&serverworks_private.scratch_dir);
- return retval;
- }
- agp_bridge.gatt_table_real = page_dir.real;
- agp_bridge.gatt_table = page_dir.remapped;
- agp_bridge.gatt_bus_addr = virt_to_bus(page_dir.real);
- /* Get the address for the gart region.
- * This is a bus address even on the alpha, b/c its
- * used to program the agp master not the cpu
- */
- pci_read_config_dword(agp_bridge.dev,
- serverworks_private.gart_addr_ofs,
- &temp);
- agp_bridge.gart_bus_addr = (temp & PCI_BASE_ADDRESS_MEM_MASK);
- /* Calculate the agp offset */
- for(i = 0; i < value->num_entries / 1024; i++) {
- page_dir.remapped[i] =
- virt_to_bus(serverworks_private.gatt_pages[i]->real);
- page_dir.remapped[i] |= 0x00000001;
- }
- return 0;
- }
- static int serverworks_free_gatt_table(void)
- {
- serverworks_page_map page_dir;
-
- page_dir.real = agp_bridge.gatt_table_real;
- page_dir.remapped = agp_bridge.gatt_table;
- serverworks_free_gatt_pages();
- serverworks_free_page_map(&page_dir);
- serverworks_free_page_map(&serverworks_private.scratch_dir);
- return 0;
- }
- static int serverworks_fetch_size(void)
- {
- int i;
- u32 temp;
- u32 temp2;
- aper_size_info_lvl2 *values;
- values = A_SIZE_LVL2(agp_bridge.aperture_sizes);
- pci_read_config_dword(agp_bridge.dev,
- serverworks_private.gart_addr_ofs,
- &temp);
- pci_write_config_dword(agp_bridge.dev,
- serverworks_private.gart_addr_ofs,
- SVWRKS_SIZE_MASK);
- pci_read_config_dword(agp_bridge.dev,
- serverworks_private.gart_addr_ofs,
- &temp2);
- pci_write_config_dword(agp_bridge.dev,
- serverworks_private.gart_addr_ofs,
- temp);
- temp2 &= SVWRKS_SIZE_MASK;
- for (i = 0; i < agp_bridge.num_aperture_sizes; i++) {
- if (temp2 == values[i].size_value) {
- agp_bridge.previous_size =
- agp_bridge.current_size = (void *) (values + i);
- agp_bridge.aperture_size_idx = i;
- return values[i].size;
- }
- }
- return 0;
- }
- static int serverworks_configure(void)
- {
- aper_size_info_lvl2 *current_size;
- u32 temp;
- u8 enable_reg;
- u8 cap_ptr;
- u32 cap_id;
- u16 cap_reg;
- current_size = A_SIZE_LVL2(agp_bridge.current_size);
- /* Get the memory mapped registers */
- pci_read_config_dword(agp_bridge.dev,
- serverworks_private.mm_addr_ofs,
- &temp);
- temp = (temp & PCI_BASE_ADDRESS_MEM_MASK);
- serverworks_private.registers = (volatile u8 *) ioremap(temp, 4096);
- OUTREG8(serverworks_private.registers, SVWRKS_GART_CACHE, 0x0a);
- OUTREG32(serverworks_private.registers, SVWRKS_GATTBASE,
- agp_bridge.gatt_bus_addr);
- cap_reg = INREG16(serverworks_private.registers, SVWRKS_COMMAND);
- cap_reg &= ~0x0007;
- cap_reg |= 0x4;
- OUTREG16(serverworks_private.registers, SVWRKS_COMMAND, cap_reg);
- pci_read_config_byte(serverworks_private.svrwrks_dev,
- SVWRKS_AGP_ENABLE, &enable_reg);
- enable_reg |= 0x1; /* Agp Enable bit */
- pci_write_config_byte(serverworks_private.svrwrks_dev,
- SVWRKS_AGP_ENABLE, enable_reg);
- agp_bridge.tlb_flush(NULL);
- pci_read_config_byte(serverworks_private.svrwrks_dev, 0x34, &cap_ptr);
- if (cap_ptr != 0x00) {
- do {
- pci_read_config_dword(serverworks_private.svrwrks_dev,
- cap_ptr, &cap_id);
- if ((cap_id & 0xff) != 0x02)
- cap_ptr = (cap_id >> 8) & 0xff;
- }
- while (((cap_id & 0xff) != 0x02) && (cap_ptr != 0x00));
- }
- agp_bridge.capndx = cap_ptr;
- /* Fill in the mode register */
- pci_read_config_dword(serverworks_private.svrwrks_dev,
- agp_bridge.capndx + 4,
- &agp_bridge.mode);
- pci_read_config_byte(agp_bridge.dev,
- SVWRKS_CACHING,
- &enable_reg);
- enable_reg &= ~0x3;
- pci_write_config_byte(agp_bridge.dev,
- SVWRKS_CACHING,
- enable_reg);
- pci_read_config_byte(agp_bridge.dev,
- SVWRKS_FEATURE,
- &enable_reg);
- enable_reg |= (1<<6);
- pci_write_config_byte(agp_bridge.dev,
- SVWRKS_FEATURE,
- enable_reg);
- return 0;
- }
- static void serverworks_cleanup(void)
- {
- iounmap((void *) serverworks_private.registers);
- }
- /*
- * This routine could be implemented by taking the addresses
- * written to the GATT, and flushing them individually. However
- * currently it just flushes the whole table. Which is probably
- * more efficent, since agp_memory blocks can be a large number of
- * entries.
- */
- static void serverworks_tlbflush(agp_memory * temp)
- {
- unsigned long end;
- OUTREG8(serverworks_private.registers, SVWRKS_POSTFLUSH, 0x01);
- end = jiffies + 3*HZ;
- while(INREG8(serverworks_private.registers,
- SVWRKS_POSTFLUSH) == 0x01) {
- if((signed)(end - jiffies) <= 0) {
- printk(KERN_ERR "Posted write buffer flush took more"
- "then 3 secondsn");
- }
- }
- OUTREG32(serverworks_private.registers, SVWRKS_DIRFLUSH, 0x00000001);
- end = jiffies + 3*HZ;
- while(INREG32(serverworks_private.registers,
- SVWRKS_DIRFLUSH) == 0x00000001) {
- if((signed)(end - jiffies) <= 0) {
- printk(KERN_ERR "TLB flush took more"
- "then 3 secondsn");
- }
- }
- }
- static unsigned long serverworks_mask_memory(unsigned long addr, int type)
- {
- /* Only type 0 is supported by the serverworks chipsets */
- return addr | agp_bridge.masks[0].mask;
- }
- static int serverworks_insert_memory(agp_memory * mem,
- off_t pg_start, int type)
- {
- int i, j, num_entries;
- unsigned long *cur_gatt;
- unsigned long addr;
- num_entries = A_SIZE_LVL2(agp_bridge.current_size)->num_entries;
- if (type != 0 || mem->type != 0) {
- return -EINVAL;
- }
- if ((pg_start + mem->page_count) > num_entries) {
- return -EINVAL;
- }
- j = pg_start;
- while (j < (pg_start + mem->page_count)) {
- addr = (j * PAGE_SIZE) + agp_bridge.gart_bus_addr;
- cur_gatt = SVRWRKS_GET_GATT(addr);
- if (!PGE_EMPTY(cur_gatt[GET_GATT_OFF(addr)])) {
- return -EBUSY;
- }
- j++;
- }
- if (mem->is_flushed == FALSE) {
- CACHE_FLUSH();
- mem->is_flushed = TRUE;
- }
- for (i = 0, j = pg_start; i < mem->page_count; i++, j++) {
- addr = (j * PAGE_SIZE) + agp_bridge.gart_bus_addr;
- cur_gatt = SVRWRKS_GET_GATT(addr);
- cur_gatt[GET_GATT_OFF(addr)] = mem->memory[i];
- }
- agp_bridge.tlb_flush(mem);
- return 0;
- }
- static int serverworks_remove_memory(agp_memory * mem, off_t pg_start,
- int type)
- {
- int i;
- unsigned long *cur_gatt;
- unsigned long addr;
- if (type != 0 || mem->type != 0) {
- return -EINVAL;
- }
- CACHE_FLUSH();
- agp_bridge.tlb_flush(mem);
- for (i = pg_start; i < (mem->page_count + pg_start); i++) {
- addr = (i * PAGE_SIZE) + agp_bridge.gart_bus_addr;
- cur_gatt = SVRWRKS_GET_GATT(addr);
- cur_gatt[GET_GATT_OFF(addr)] =
- (unsigned long) agp_bridge.scratch_page;
- }
- agp_bridge.tlb_flush(mem);
- return 0;
- }
- static gatt_mask serverworks_masks[] =
- {
- {0x00000001, 0}
- };
- static aper_size_info_lvl2 serverworks_sizes[7] =
- {
- {2048, 524288, 0x80000000},
- {1024, 262144, 0xc0000000},
- {512, 131072, 0xe0000000},
- {256, 65536, 0xf0000000},
- {128, 32768, 0xf8000000},
- {64, 16384, 0xfc000000},
- {32, 8192, 0xfe000000}
- };
- static void serverworks_agp_enable(u32 mode)
- {
- struct pci_dev *device = NULL;
- u32 command, scratch, cap_id;
- u8 cap_ptr;
- pci_read_config_dword(serverworks_private.svrwrks_dev,
- agp_bridge.capndx + 4,
- &command);
- /*
- * PASS1: go throu all devices that claim to be
- * AGP devices and collect their data.
- */
- pci_for_each_dev(device)
- {
- /*
- * Enable AGP devices. Most will be VGA display but
- * some may be coprocessors on non VGA devices too
- */
-
- if((((device->class >> 16) & 0xFF) != PCI_BASE_CLASS_DISPLAY) &&
- (device->class != (PCI_CLASS_PROCESSOR_CO << 8)))
- continue;
- pci_read_config_dword(device, 0x04, &scratch);
- if (!(scratch & 0x00100000))
- continue;
- pci_read_config_byte(device, 0x34, &cap_ptr);
- if (cap_ptr != 0x00) {
- do {
- pci_read_config_dword(device,
- cap_ptr, &cap_id);
- if ((cap_id & 0xff) != 0x02)
- cap_ptr = (cap_id >> 8) & 0xff;
- }
- while (((cap_id & 0xff) != 0x02) && (cap_ptr != 0x00));
- }
- if (cap_ptr != 0x00) {
- /*
- * Ok, here we have a AGP device. Disable impossible
- * settings, and adjust the readqueue to the minimum.
- */
- pci_read_config_dword(device, cap_ptr + 4, &scratch);
- /* adjust RQ depth */
- command =
- ((command & ~0xff000000) |
- min_t(u32, (mode & 0xff000000),
- min_t(u32, (command & 0xff000000),
- (scratch & 0xff000000))));
- /* disable SBA if it's not supported */
- if (!((command & 0x00000200) &&
- (scratch & 0x00000200) &&
- (mode & 0x00000200)))
- command &= ~0x00000200;
- /* disable FW */
- command &= ~0x00000010;
- command &= ~0x00000008;
- if (!((command & 4) &&
- (scratch & 4) &&
- (mode & 4)))
- command &= ~0x00000004;
- if (!((command & 2) &&
- (scratch & 2) &&
- (mode & 2)))
- command &= ~0x00000002;
- if (!((command & 1) &&
- (scratch & 1) &&
- (mode & 1)))
- command &= ~0x00000001;
- }
- }
- /*
- * PASS2: Figure out the 4X/2X/1X setting and enable the
- * target (our motherboard chipset).
- */
- if (command & 4) {
- command &= ~3; /* 4X */
- }
- if (command & 2) {
- command &= ~5; /* 2X */
- }
- if (command & 1) {
- command &= ~6; /* 1X */
- }
- command |= 0x00000100;
- pci_write_config_dword(serverworks_private.svrwrks_dev,
- agp_bridge.capndx + 8,
- command);
- /*
- * PASS3: Go throu all AGP devices and update the
- * command registers.
- */
- while ((device = pci_find_class(PCI_CLASS_DISPLAY_VGA << 8,
- device)) != NULL) {
- pci_read_config_dword(device, 0x04, &scratch);
- if (!(scratch & 0x00100000))
- continue;
- pci_read_config_byte(device, 0x34, &cap_ptr);
- if (cap_ptr != 0x00) {
- do {
- pci_read_config_dword(device,
- cap_ptr, &cap_id);
- if ((cap_id & 0xff) != 0x02)
- cap_ptr = (cap_id >> 8) & 0xff;
- }
- while (((cap_id & 0xff) != 0x02) && (cap_ptr != 0x00));
- }
- if (cap_ptr != 0x00)
- pci_write_config_dword(device, cap_ptr + 8, command);
- }
- }
- static int __init serverworks_setup (struct pci_dev *pdev)
- {
- u32 temp;
- u32 temp2;
- serverworks_private.svrwrks_dev = pdev;
- agp_bridge.masks = serverworks_masks;
- agp_bridge.num_of_masks = 1;
- agp_bridge.aperture_sizes = (void *) serverworks_sizes;
- agp_bridge.size_type = LVL2_APER_SIZE;
- agp_bridge.num_aperture_sizes = 7;
- agp_bridge.dev_private_data = (void *) &serverworks_private;
- agp_bridge.needs_scratch_page = TRUE;
- agp_bridge.configure = serverworks_configure;
- agp_bridge.fetch_size = serverworks_fetch_size;
- agp_bridge.cleanup = serverworks_cleanup;
- agp_bridge.tlb_flush = serverworks_tlbflush;
- agp_bridge.mask_memory = serverworks_mask_memory;
- agp_bridge.agp_enable = serverworks_agp_enable;
- agp_bridge.cache_flush = global_cache_flush;
- agp_bridge.create_gatt_table = serverworks_create_gatt_table;
- agp_bridge.free_gatt_table = serverworks_free_gatt_table;
- agp_bridge.insert_memory = serverworks_insert_memory;
- agp_bridge.remove_memory = serverworks_remove_memory;
- agp_bridge.alloc_by_type = agp_generic_alloc_by_type;
- agp_bridge.free_by_type = agp_generic_free_by_type;
- agp_bridge.agp_alloc_page = agp_generic_alloc_page;
- agp_bridge.agp_destroy_page = agp_generic_destroy_page;
- agp_bridge.suspend = agp_generic_suspend;
- agp_bridge.resume = agp_generic_resume;
- agp_bridge.cant_use_aperture = 0;
- pci_read_config_dword(agp_bridge.dev,
- SVWRKS_APSIZE,
- &temp);
- serverworks_private.gart_addr_ofs = 0x10;
- if(temp & PCI_BASE_ADDRESS_MEM_TYPE_64) {
- pci_read_config_dword(agp_bridge.dev,
- SVWRKS_APSIZE + 4,
- &temp2);
- if(temp2 != 0) {
- printk("Detected 64 bit aperture address, but top "
- "bits are not zero. Disabling agpn");
- return -ENODEV;
- }
- serverworks_private.mm_addr_ofs = 0x18;
- } else {
- serverworks_private.mm_addr_ofs = 0x14;
- }
- pci_read_config_dword(agp_bridge.dev,
- serverworks_private.mm_addr_ofs,
- &temp);
- if(temp & PCI_BASE_ADDRESS_MEM_TYPE_64) {
- pci_read_config_dword(agp_bridge.dev,
- serverworks_private.mm_addr_ofs + 4,
- &temp2);
- if(temp2 != 0) {
- printk("Detected 64 bit MMIO address, but top "
- "bits are not zero. Disabling agpn");
- return -ENODEV;
- }
- }
- return 0;
- }
- #endif /* CONFIG_AGP_SWORKS */
- /* per-chipset initialization data.
- * note -- all chipsets for a single vendor MUST be grouped together
- */
- static struct {
- unsigned short device_id; /* first, to make table easier to read */
- unsigned short vendor_id;
- enum chipset_type chipset;
- const char *vendor_name;
- const char *chipset_name;
- int (*chipset_setup) (struct pci_dev *pdev);
- } agp_bridge_info[] __initdata = {
- #ifdef CONFIG_AGP_ALI
- { PCI_DEVICE_ID_AL_M1541_0,
- PCI_VENDOR_ID_AL,
- ALI_M1541,
- "Ali",
- "M1541",
- ali_generic_setup },
- { PCI_DEVICE_ID_AL_M1621_0,
- PCI_VENDOR_ID_AL,
- ALI_M1621,
- "Ali",
- "M1621",
- ali_generic_setup },
- { PCI_DEVICE_ID_AL_M1631_0,
- PCI_VENDOR_ID_AL,
- ALI_M1631,
- "Ali",
- "M1631",
- ali_generic_setup },
- { PCI_DEVICE_ID_AL_M1632_0,
- PCI_VENDOR_ID_AL,
- ALI_M1632,
- "Ali",
- "M1632",
- ali_generic_setup },
- { PCI_DEVICE_ID_AL_M1641_0,
- PCI_VENDOR_ID_AL,
- ALI_M1641,
- "Ali",
- "M1641",
- ali_generic_setup },
- { PCI_DEVICE_ID_AL_M1647_0,
- PCI_VENDOR_ID_AL,
- ALI_M1647,
- "Ali",
- "M1647",
- ali_generic_setup },
- { PCI_DEVICE_ID_AL_M1651_0,
- PCI_VENDOR_ID_AL,
- ALI_M1651,
- "Ali",
- "M1651",
- ali_generic_setup },
- { 0,
- PCI_VENDOR_ID_AL,
- ALI_GENERIC,
- "Ali",
- "Generic",
- ali_generic_setup },
- #endif /* CONFIG_AGP_ALI */
- #ifdef CONFIG_AGP_AMD
- { PCI_DEVICE_ID_AMD_IRONGATE_0,
- PCI_VENDOR_ID_AMD,
- AMD_IRONGATE,
- "AMD",
- "Irongate",
- amd_irongate_setup },
- { PCI_DEVICE_ID_AMD_762_0,
- PCI_VENDOR_ID_AMD,
- AMD_IRONGATE,
- "AMD",
- "AMD 760MP",
- amd_irongate_setup },
- { PCI_DEVICE_ID_AMD_761_0,
- PCI_VENDOR_ID_AMD,
- AMD_761,
- "AMD",
- "761",
- amd_irongate_setup },
- { PCI_DEVICE_ID_AMD_762_0,
- PCI_VENDOR_ID_AMD,
- AMD_762,
- "AMD",
- "AMD 760MP",
- amd_irongate_setup },
- { 0,
- PCI_VENDOR_ID_AMD,
- AMD_GENERIC,
- "AMD",
- "Generic",
- amd_irongate_setup },
- #endif /* CONFIG_AGP_AMD */
- #ifdef CONFIG_AGP_INTEL
- { PCI_DEVICE_ID_INTEL_82443LX_0,
- PCI_VENDOR_ID_INTEL,
- INTEL_LX,
- "Intel",
- "440LX",
- intel_generic_setup },
- { PCI_DEVICE_ID_INTEL_82443BX_0,
- PCI_VENDOR_ID_INTEL,
- INTEL_BX,
- "Intel",
- "440BX",
- intel_generic_setup },
- { PCI_DEVICE_ID_INTEL_82443GX_0,
- PCI_VENDOR_ID_INTEL,
- INTEL_GX,
- "Intel",
- "440GX",
- intel_generic_setup },
- { PCI_DEVICE_ID_INTEL_815_0,
- PCI_VENDOR_ID_INTEL,
- INTEL_I815,
- "Intel",
- "i815",
- intel_generic_setup },
- { PCI_DEVICE_ID_INTEL_820_0,
- PCI_VENDOR_ID_INTEL,
- INTEL_I820,
- "Intel",
- "i820",
- intel_820_setup },
- { PCI_DEVICE_ID_INTEL_820_UP_0,
- PCI_VENDOR_ID_INTEL,
- INTEL_I820,
- "Intel",
- "i820",
- intel_820_setup },
- { PCI_DEVICE_ID_INTEL_830_M_0,
- PCI_VENDOR_ID_INTEL,
- INTEL_I830_M,
- "Intel",
- "i830M",
- intel_830mp_setup },
- { PCI_DEVICE_ID_INTEL_840_0,
- PCI_VENDOR_ID_INTEL,
- INTEL_I840,
- "Intel",
- "i840",
- intel_840_setup },
- { PCI_DEVICE_ID_INTEL_845_0,
- PCI_VENDOR_ID_INTEL,
- INTEL_I845,
- "Intel",
- "i845",
- intel_845_setup },
- { PCI_DEVICE_ID_INTEL_850_0,
- PCI_VENDOR_ID_INTEL,
- INTEL_I850,
- "Intel",
- "i850",
- intel_850_setup },
- { PCI_DEVICE_ID_INTEL_860_0,
- PCI_VENDOR_ID_INTEL,
- INTEL_I860,
- "Intel",
- "i860",
- intel_860_setup },
- { 0,
- PCI_VENDOR_ID_INTEL,
- INTEL_GENERIC,
- "Intel",
- "Generic",
- intel_generic_setup },
- #endif /* CONFIG_AGP_INTEL */
- #ifdef CONFIG_AGP_SIS
- { PCI_DEVICE_ID_SI_740,
- PCI_VENDOR_ID_SI,
- SIS_GENERIC,
- "SiS",
- "740",
- sis_generic_setup },
- { PCI_DEVICE_ID_SI_650,
- PCI_VENDOR_ID_SI,
- SIS_GENERIC,
- "SiS",
- "650",
- sis_generic_setup },
- { PCI_DEVICE_ID_SI_645,
- PCI_VENDOR_ID_SI,
- SIS_GENERIC,
- "SiS",
- "645",
- sis_generic_setup },
- { PCI_DEVICE_ID_SI_735,
- PCI_VENDOR_ID_SI,
- SIS_GENERIC,
- "SiS",
- "735",
- sis_generic_setup },
- { PCI_DEVICE_ID_SI_730,
- PCI_VENDOR_ID_SI,
- SIS_GENERIC,
- "SiS",
- "730",
- sis_generic_setup },
- { PCI_DEVICE_ID_SI_630,
- PCI_VENDOR_ID_SI,
- SIS_GENERIC,
- "SiS",
- "630",
- sis_generic_setup },
- { PCI_DEVICE_ID_SI_540,
- PCI_VENDOR_ID_SI,
- SIS_GENERIC,
- "SiS",
- "540",
- sis_generic_setup },
- { PCI_DEVICE_ID_SI_620,
- PCI_VENDOR_ID_SI,
- SIS_GENERIC,
- "SiS",
- "620",
- sis_generic_setup },
- { PCI_DEVICE_ID_SI_530,
- PCI_VENDOR_ID_SI,
- SIS_GENERIC,
- "SiS",
- "530",
- sis_generic_setup },
- { PCI_DEVICE_ID_SI_550,
- PCI_VENDOR_ID_SI,
- SIS_GENERIC,
- "SiS",
- "550",
- sis_generic_setup },
- { 0,
- PCI_VENDOR_ID_SI,
- SIS_GENERIC,
- "SiS",
- "Generic",
- sis_generic_setup },
- #endif /* CONFIG_AGP_SIS */
- #ifdef CONFIG_AGP_VIA
- { PCI_DEVICE_ID_VIA_8501_0,
- PCI_VENDOR_ID_VIA,
- VIA_MVP4,
- "Via",
- "MVP4",
- via_generic_setup },
- { PCI_DEVICE_ID_VIA_82C597_0,
- PCI_VENDOR_ID_VIA,
- VIA_VP3,
- "Via",
- "VP3",
- via_generic_setup },
- { PCI_DEVICE_ID_VIA_82C598_0,
- PCI_VENDOR_ID_VIA,
- VIA_MVP3,
- "Via",
- "MVP3",
- via_generic_setup },
- { PCI_DEVICE_ID_VIA_82C691_0,
- PCI_VENDOR_ID_VIA,
- VIA_APOLLO_PRO,
- "Via",
- "Apollo Pro",
- via_generic_setup },
- { PCI_DEVICE_ID_VIA_8371_0,
- PCI_VENDOR_ID_VIA,
- VIA_APOLLO_KX133,
- "Via",
- "Apollo Pro KX133",
- via_generic_setup },
- { PCI_DEVICE_ID_VIA_8363_0,
- PCI_VENDOR_ID_VIA,
- VIA_APOLLO_KT133,
- "Via",
- "Apollo Pro KT133",
- via_generic_setup },
- { PCI_DEVICE_ID_VIA_8367_0,
- PCI_VENDOR_ID_VIA,
- VIA_APOLLO_KT133,
- "Via",
- "Apollo Pro KT266",
- via_generic_setup },
- { 0,
- PCI_VENDOR_ID_VIA,
- VIA_GENERIC,
- "Via",
- "Generic",
- via_generic_setup },
- #endif /* CONFIG_AGP_VIA */
- { 0, }, /* dummy final entry, always present */
- };
- /* scan table above for supported devices */
- static int __init agp_lookup_host_bridge (struct pci_dev *pdev)
- {
- int i;
-
- for (i = 0; i < ARRAY_SIZE (agp_bridge_info); i++)
- if (pdev->vendor == agp_bridge_info[i].vendor_id)
- break;
- if (i >= ARRAY_SIZE (agp_bridge_info)) {
- printk (KERN_DEBUG PFX "unsupported bridgen");
- return -ENODEV;
- }
- while ((i < ARRAY_SIZE (agp_bridge_info)) &&
- (agp_bridge_info[i].vendor_id == pdev->vendor)) {
- if (pdev->device == agp_bridge_info[i].device_id) {
- #ifdef CONFIG_AGP_ALI
- if (pdev->device == PCI_DEVICE_ID_AL_M1621_0) {
- u8 hidden_1621_id;
- pci_read_config_byte(pdev, 0xFB, &hidden_1621_id);
- switch (hidden_1621_id) {
- case 0x31:
- agp_bridge_info[i].chipset_name="M1631";
- break;
- case 0x32:
- agp_bridge_info[i].chipset_name="M1632";
- break;
- case 0x41:
- agp_bridge_info[i].chipset_name="M1641";
- break;
- case 0x43:
- break;
- case 0x47:
- agp_bridge_info[i].chipset_name="M1647";
- break;
- case 0x51:
- agp_bridge_info[i].chipset_name="M1651";
- break;
- default:
- break;
- }
- }
- #endif
- printk (KERN_INFO PFX "Detected %s %s chipsetn",
- agp_bridge_info[i].vendor_name,
- agp_bridge_info[i].chipset_name);
- agp_bridge.type = agp_bridge_info[i].chipset;
- return agp_bridge_info[i].chipset_setup (pdev);
- }
-
- i++;
- }
- i--; /* point to vendor generic entry (device_id == 0) */
- /* try init anyway, if user requests it AND
- * there is a 'generic' bridge entry for this vendor */
- if (agp_try_unsupported && agp_bridge_info[i].device_id == 0) {
- printk(KERN_WARNING PFX "Trying generic %s routines"
- " for device id: %04xn",
- agp_bridge_info[i].vendor_name, pdev->device);
- agp_bridge.type = agp_bridge_info[i].chipset;
- return agp_bridge_info[i].chipset_setup (pdev);
- }
- printk(KERN_ERR PFX "Unsupported %s chipset (device id: %04x),"
- " you might want to try agp_try_unsupported=1.n",
- agp_bridge_info[i].vendor_name, pdev->device);
- return -ENODEV;
- }
- /* Supported Device Scanning routine */
- static int __init agp_find_supported_device(void)
- {
- struct pci_dev *dev = NULL;
- u8 cap_ptr = 0x00;
- u32 cap_id, scratch;
- if ((dev = pci_find_class(PCI_CLASS_BRIDGE_HOST << 8, NULL)) == NULL)
- return -ENODEV;
- agp_bridge.dev = dev;
- /* Need to test for I810 here */
- #ifdef CONFIG_AGP_I810
- if (dev->vendor == PCI_VENDOR_ID_INTEL) {
- struct pci_dev *i810_dev;
- switch (dev->device) {
- case PCI_DEVICE_ID_INTEL_810_0:
- i810_dev = pci_find_device(PCI_VENDOR_ID_INTEL,
- PCI_DEVICE_ID_INTEL_810_1,
- NULL);
- if (i810_dev == NULL) {
- printk(KERN_ERR PFX "Detected an Intel i810,"
- " but could not find the secondary"
- " device.n");
- return -ENODEV;
- }
- printk(KERN_INFO PFX "Detected an Intel "
- "i810 Chipset.n");
- agp_bridge.type = INTEL_I810;
- return intel_i810_setup (i810_dev);
- case PCI_DEVICE_ID_INTEL_810_DC100_0:
- i810_dev = pci_find_device(PCI_VENDOR_ID_INTEL,
- PCI_DEVICE_ID_INTEL_810_DC100_1,
- NULL);
- if (i810_dev == NULL) {
- printk(KERN_ERR PFX "Detected an Intel i810 "
- "DC100, but could not find the "
- "secondary device.n");
- return -ENODEV;
- }
- printk(KERN_INFO PFX "Detected an Intel i810 "
- "DC100 Chipset.n");
- agp_bridge.type = INTEL_I810;
- return intel_i810_setup(i810_dev);
- case PCI_DEVICE_ID_INTEL_810_E_0:
- i810_dev = pci_find_device(PCI_VENDOR_ID_INTEL,
- PCI_DEVICE_ID_INTEL_810_E_1,
- NULL);
- if (i810_dev == NULL) {
- printk(KERN_ERR PFX "Detected an Intel i810 E"
- ", but could not find the secondary "
- "device.n");
- return -ENODEV;
- }
- printk(KERN_INFO PFX "Detected an Intel i810 E "
- "Chipset.n");
- agp_bridge.type = INTEL_I810;
- return intel_i810_setup(i810_dev);
- case PCI_DEVICE_ID_INTEL_815_0:
- /* The i815 can operate either as an i810 style
- * integrated device, or as an AGP4X motherboard.
- *
- * This only addresses the first mode:
- */
- i810_dev = pci_find_device(PCI_VENDOR_ID_INTEL,
- PCI_DEVICE_ID_INTEL_815_1,
- NULL);
- if (i810_dev == NULL) {
- printk(KERN_ERR PFX "agpgart: Detected an "
- "Intel i815, but could not find the"
- " secondary device. Assuming a "
- "non-integrated video card.n");
- break;
- }
- printk(KERN_INFO PFX "agpgart: Detected an Intel i815 "
- "Chipset.n");
- agp_bridge.type = INTEL_I810;
- return intel_i810_setup(i810_dev);
- case PCI_DEVICE_ID_INTEL_830_M_0:
- i810_dev = pci_find_device(PCI_VENDOR_ID_INTEL,
- PCI_DEVICE_ID_INTEL_830_M_1, NULL);
- if(i810_dev && PCI_FUNC(i810_dev->devfn) != 0) {
- i810_dev = pci_find_device(PCI_VENDOR_ID_INTEL,
- PCI_DEVICE_ID_INTEL_830_M_1, i810_dev);
- }
- if (i810_dev == NULL) {
- /*
- * We probably have a I830MP chipset
- * with an external graphics
- * card. It will be initialized later
- */
- agp_bridge.type = INTEL_I830_M;
- break;
- }
- printk(KERN_INFO PFX "Detected an Intel "
- "830M Chipset.n");
- agp_bridge.type = INTEL_I810;
- return intel_i830_setup(i810_dev);
- default:
- break;
- }
- }
- #endif /* CONFIG_AGP_I810 */
- #ifdef CONFIG_AGP_SWORKS
- /* Everything is on func 1 here so we are hardcoding function one */
- if (dev->vendor == PCI_VENDOR_ID_SERVERWORKS) {
- struct pci_dev *bridge_dev;
- bridge_dev = pci_find_slot ((unsigned int)dev->bus->number,
- PCI_DEVFN(0, 1));
- if(bridge_dev == NULL) {
- printk(KERN_INFO PFX "agpgart: Detected a Serverworks "
- "Chipset, but could not find the secondary "
- "device.n");
- return -ENODEV;
- }
- switch (dev->device) {
- case PCI_DEVICE_ID_SERVERWORKS_HE:
- agp_bridge.type = SVWRKS_HE;
- return serverworks_setup(bridge_dev);
- case PCI_DEVICE_ID_SERVERWORKS_LE:
- case 0x0007:
- agp_bridge.type = SVWRKS_LE;
- return serverworks_setup(bridge_dev);
- default:
- if(agp_try_unsupported) {
- agp_bridge.type = SVWRKS_GENERIC;
- return serverworks_setup(bridge_dev);
- }
- break;
- }
- }
- #endif /* CONFIG_AGP_SWORKS */
- /* find capndx */
- pci_read_config_dword(dev, 0x04, &scratch);
- if (!(scratch & 0x00100000))
- return -ENODEV;
- pci_read_config_byte(dev, 0x34, &cap_ptr);
- if (cap_ptr != 0x00) {
- do {
- pci_read_config_dword(dev, cap_ptr, &cap_id);
- if ((cap_id & 0xff) != 0x02)
- cap_ptr = (cap_id >> 8) & 0xff;
- }
- while (((cap_id & 0xff) != 0x02) && (cap_ptr != 0x00));
- }
- if (cap_ptr == 0x00)
- return -ENODEV;
- agp_bridge.capndx = cap_ptr;
- /* Fill in the mode register */
- pci_read_config_dword(agp_bridge.dev,
- agp_bridge.capndx + 4,
- &agp_bridge.mode);
- /* probe for known chipsets */
- return agp_lookup_host_bridge (dev);
- }
- struct agp_max_table {
- int mem;
- int agp;
- };
- static struct agp_max_table maxes_table[9] __initdata =
- {
- {0, 0},
- {32, 4},
- {64, 28},
- {128, 96},
- {256, 204},
- {512, 440},
- {1024, 942},
- {2048, 1920},
- {4096, 3932}
- };
- static int __init agp_find_max (void)
- {
- long memory, index, result;
- memory = virt_to_phys(high_memory) >> 20;
- index = 1;
- while ((memory > maxes_table[index].mem) &&
- (index < 8)) {
- index++;
- }
- result = maxes_table[index - 1].agp +
- ( (memory - maxes_table[index - 1].mem) *
- (maxes_table[index].agp - maxes_table[index - 1].agp)) /
- (maxes_table[index].mem - maxes_table[index - 1].mem);
- printk(KERN_INFO PFX "Maximum main memory to use "
- "for agp memory: %ldMn", result);
- result = result << (20 - PAGE_SHIFT);
- return result;
- }
- #define AGPGART_VERSION_MAJOR 0
- #define AGPGART_VERSION_MINOR 99
- static agp_version agp_current_version =
- {
- AGPGART_VERSION_MAJOR,
- AGPGART_VERSION_MINOR
- };
- static int __init agp_backend_initialize(void)
- {
- int size_value, rc, got_gatt=0, got_keylist=0;
- memset(&agp_bridge, 0, sizeof(struct agp_bridge_data));
- agp_bridge.type = NOT_SUPPORTED;
- agp_bridge.max_memory_agp = agp_find_max();
- agp_bridge.version = &agp_current_version;
- rc = agp_find_supported_device();
- if (rc) {
- /* not KERN_ERR because error msg should have already printed */
- printk(KERN_DEBUG PFX "no supported devices found.n");
- return rc;
- }
- if (agp_bridge.needs_scratch_page == TRUE) {
- agp_bridge.scratch_page = agp_bridge.agp_alloc_page();
- if (agp_bridge.scratch_page == 0) {
- printk(KERN_ERR PFX "unable to get memory for "
- "scratch page.n");
- return -ENOMEM;
- }
- agp_bridge.scratch_page =
- virt_to_phys((void *) agp_bridge.scratch_page);
- agp_bridge.scratch_page =
- agp_bridge.mask_memory(agp_bridge.scratch_page, 0);
- }
- size_value = agp_bridge.fetch_size();
- if (size_value == 0) {
- printk(KERN_ERR PFX "unable to determine aperture size.n");
- rc = -EINVAL;
- goto err_out;
- }
- if (agp_bridge.create_gatt_table()) {
- printk(KERN_ERR PFX "unable to get memory for graphics "
- "translation table.n");
- rc = -ENOMEM;
- goto err_out;
- }
- got_gatt = 1;
-
- agp_bridge.key_list = vmalloc(PAGE_SIZE * 4);
- if (agp_bridge.key_list == NULL) {
- printk(KERN_ERR PFX "error allocating memory for key lists.n");
- rc = -ENOMEM;
- goto err_out;
- }
- got_keylist = 1;
-
- /* FIXME vmalloc'd memory not guaranteed contiguous */
- memset(agp_bridge.key_list, 0, PAGE_SIZE * 4);
- if (agp_bridge.configure()) {
- printk(KERN_ERR PFX "error configuring host chipset.n");
- rc = -EINVAL;
- goto err_out;
- }
- printk(KERN_INFO PFX "AGP aperture is %dM @ 0x%lxn",
- size_value, agp_bridge.gart_bus_addr);
- return 0;
- err_out:
- if (agp_bridge.needs_scratch_page == TRUE) {
- agp_bridge.scratch_page &= ~(0x00000fff);
- agp_bridge.agp_destroy_page((unsigned long)
- phys_to_virt(agp_bridge.scratch_page));
- }
- if (got_gatt)
- agp_bridge.free_gatt_table();
- if (got_keylist)
- vfree(agp_bridge.key_list);
- return rc;
- }
- /* cannot be __exit b/c as it could be called from __init code */
- static void agp_backend_cleanup(void)
- {
- agp_bridge.cleanup();
- agp_bridge.free_gatt_table();
- vfree(agp_bridge.key_list);
- if (agp_bridge.needs_scratch_page == TRUE) {
- agp_bridge.scratch_page &= ~(0x00000fff);
- agp_bridge.agp_destroy_page((unsigned long)
- phys_to_virt(agp_bridge.scratch_page));
- }
- }
- static int agp_power(struct pm_dev *dev, pm_request_t rq, void *data)
- {
- switch(rq)
- {
- case PM_SUSPEND:
- return agp_bridge.suspend();
- case PM_RESUME:
- agp_bridge.resume();
- return 0;
- }
- return 0;
- }
- extern int agp_frontend_initialize(void);
- extern void agp_frontend_cleanup(void);
- static const drm_agp_t drm_agp = {
- &agp_free_memory,
- &agp_allocate_memory,
- &agp_bind_memory,
- &agp_unbind_memory,
- &agp_enable,
- &agp_backend_acquire,
- &agp_backend_release,
- &agp_copy_info
- };
- static int __init agp_init(void)
- {
- int ret_val;
- printk(KERN_INFO "Linux agpgart interface v%d.%d (c) Jeff Hartmannn",
- AGPGART_VERSION_MAJOR, AGPGART_VERSION_MINOR);
- ret_val = agp_backend_initialize();
- if (ret_val) {
- agp_bridge.type = NOT_SUPPORTED;
- return ret_val;
- }
- ret_val = agp_frontend_initialize();
- if (ret_val) {
- agp_bridge.type = NOT_SUPPORTED;
- agp_backend_cleanup();
- return ret_val;
- }
- inter_module_register("drm_agp", THIS_MODULE, &drm_agp);
-
- pm_register(PM_PCI_DEV, PM_PCI_ID(agp_bridge.dev), agp_power);
- return 0;
- }
- static void __exit agp_cleanup(void)
- {
- pm_unregister_all(agp_power);
- agp_frontend_cleanup();
- agp_backend_cleanup();
- inter_module_unregister("drm_agp");
- }
- module_init(agp_init);
- module_exit(agp_cleanup);